АППАРАТ ДЛЯ ИЗЛУЧЕНИЯ И ДЕТЕКТИРОВАНИЯ ЛУЧЕЙ СВЕТА

... 1. Аппарат для излучения и детектирования лучей света, включающий в себя ! по меньшей мере две области реакции, ! модуль возбуждения, включающий в себя по меньшей мере два источника возбуждающего излучения, способные испускать возбуждающие лучи света различающихся спектров и длин волн, ! по меньшей мере два первых световода, причем каждый первый световод способен направить луч света, испущенный одним из указанных источников возбуждающего излучения по меньшей мере в одну из указанных областей реакции, ! по меньшей мере два вторых световода, причем каждый второй световод способен направить луч света, испущенный одной из указанных областей реакции, в эмиссионный модуль, ! эмиссионный модуль, способный детектировать лучи, испущенные каждой из по меньшей мере двух областей реакции, независимо и одновременно, причем указанный эмиссионный модуль включает в себя по меньшей мере два детектора и вращающееся колесо с фильтрами, причем указанное вращающееся колесо с фильтрами расположено между указанными ...

УСТРОЙСТВО И СПОСОБ ДЛЯ ОПРЕДЕЛЕНИЯ СПЕКТРОВ КОМБИНАЦИОННОГО РАССЕЯНИЯ И ФОТОЛЮМИНЕСЦЕНЦИИ ВЕЩЕСТВА

... 1. Устройство для одновременного определения спектров комбинационного рассеяния и фотолюминесценции вещества, содержащее:установку лазерного генератора с лазерным генератором, способным генерировать лазерный луч;коллимирующую систему для коллимирования указанного лазерного луча на указанное вещество и для сбора рассеянного света от указанного вещества, при этом указанный рассеянный свет содержит рассеяние Релея, комбинационное рассеяние, фотолюминесцентное рассеяние и отраженный лазерный луч;гнездо для приема указанной установки лазерного генератора в условиях обеспечения функционирования указанного устройства без дополнительной настройки или позиционирования указанной коллимирующей системы или указанного лазерного генератора;систему фильтрации для отфильтровывания указанного рассеяния Релея и указанного отраженного лазерного луча от указанного рассеянного света;систему дисперсии света, оптимизированную для спектрального разрешения и спектрального диапазона, достаточных для одновременного ...

Radiation source radiation characteristic measurement

The radiation characteristic measurement uses an optical fiber radiometer with a bundle of optical fibers (2) supplying the emitted radiation to a photodetector. The input ends of the fibers are positioned at a constant radial distance from the source (6), the fibers combined with at least 3 reference optical fibers (12), used for position calibration of the sensitive surface of the photodetector. An Independent claim for a radiation characteristic measuring device is also included.

GERAET ZUR BERUEHRUNGSLOSEN, NUMERISCHEN BEWERTUNG DER FARBE ODER EINER FARBVERAENDERUNG EIENS GEGENSTANDES

Einrichtung zum Nachweis der Anwesenheit und der Güte einer Flamme durch Erfassung von elektromagnetischen Strahlungen

Messvorrichtung für biologisches Material

Eine Steuerung korrigiert ein Spektrum S (λ), das bei einer Wellenlänge λ des Signallichts erfasst wird, zu S' (λ) gemäß den folgenden Ausdrücken:undwobei 11 die Intensität des bei der Wellenlänge λ1 von Referenzlicht erfassten Infrarotlichts und 12 die Intensität der bei einer Wellenlänge λ2 von Korrekturlicht erfassten Infrarotlichts ist.

Portables küvettenloses Tauchspektrophotometer

Die Erfindung betrifft ein portables küvettenloses Spektrophotometer zur Bestimmung von Analyten-Konzentrationen durch Eintauchen in Fluidproben, bei dem die Lichtquelle und/oder der Photodetektor relativ zueinander bewegbar sind und das mit einer netzunabhängigen Stromversorgung und einer digitalen Anzeigeeinrichtung für das Messergebnis versehen ist.

OPTISCHE MESSEINRICHTUNG, INSBESONDERE TRISTIMULUS-COLORIMETER

Messsystem zur Bestimmung des spektral aufgelösten gerichteten Reflexionsgrades von Spiegelproben

Die Erfindung betrifft ein Messsystem zur Bestimmung des spektral aufgelösten gerichteten Reflexionsgrades von Spiegelproben (3), mit einem Strahlungserzeuger (5) zur Erzeugung von kollimierter elektromagentischer Strahlung (7) von definierter Wellenlänge und einer Strahlungsdetektorvorrichtung (21) mit einem Strahlungssammler (22) und mindestens einem Strahlungsdetektor (27a, 27b), wobei die kollimierte elektromagentische Strahlung (7) auf die Spiegelprobe (3) gestrahlt wird und die von der Spiegelprobe (3) reflektierte Strahlung (7a) mit der Strahlungsdetektorvorrichtung (21) detektiert wird, wobei der Strahlungssammler (22) eine Eintrittsöffnung (23) mit einer vorgegebenen Größe aufweist und ein Strahlungskonzentrator (19) von der Spiegelprobe (3) reflektierte kollimierte elektromagentische Strahlung (7a) auf die (23) Eintrittsöffnung konzentriert.

Spektrometer und Verfahren zum Analysieren einer Lichtprobe mittels eines Spektrometers

Beschrieben und dargestellt ist ein Spektrometer (1) umfassend wenigstens ein Lichteinkopplungselement (3), einen variablen Eintrittsspalt (4), ein dispersives Element (6), ein Detektorelement (7) und eine Steuer- und Auswerteeinheit (8). Die Aufgabe ein Spektrometer mit verbesserten Messeigenschaften anzugeben, wird dadurch gelöst, dass der variable Eintrittsspalt (4) durch ein erstes räumliches Modulationselement umfassend eine Mehrzahl von Pixeln realisiert ist, wobei die einzelnen Pixel unabhängig voneinander durch die Steuer- und Auswerteeinheit ausgerichtet werden können, wobei die einzelnen Pixel zur Realisierung des Eintrittspaltes im Betrieb derart ausgerichtet sind, dass zumindest ein Teil des von dem Lichteinkopplungselement (3) einfallenden Lichtes auf das dispersive Element (6) weitergeleitet wird.

Detektorvorrichtung und Verfahren zur Fernanalyse von Stoffen sowie mobiles Sensorsystem

Die Erfindung betrifft eine Detektorvorrichtung (100) zur Fernanalyse von Stoffen, insbesondere Gefahrstoffen, umfassend wenigstens einen Laser (10), welcher zum Einstrahlen von gepulstem Laserlicht (60) auf eine in einer Detektionsentfernung (d) befindlichen Probe (16) ausgebildet ist, ein Teleskop (18), welches zum Sammeln und/oder Fokussieren von an der Probe (16) gestreutem Laserlicht (62) sowie zum Weiterleiten des gestreuten Laserlichts (62) in ein optisches Spektrometer (22) ausgebildet ist. Das optische Spektrometer (22) ist zur spektralen Analyse des an der Probe (16) gestreuten Laserlichts (62) ausgebildet. Auf den Laser (10) folgen ein erster Strahlengang mit einem ersten Referenzstrahl (64) und ein weiter Strahlengang mit einem zweiten Referenzstrahl (66) für das Laserlicht (62). Eine Einheit (46) ist zur Bestimmung einer Zeitdifferenz zwischen Pulsen des ersten Referenzstrahls (64) und Pulsen des zweiten Referenzstrahls (66) vorgesehen, wobei aus der Zeitdifferenz die Detektionsentfernung ...

Verfahren zur Erkennung von Farbmustern auf Oberflächen

Ein Verfahren zur Erkennung von Farbmustern auf Oberflächen mit mindestens einem auf die Oberfläche gerichteten Farbsensor weist die Schritte auf von: DOLLAR A a) Bewegen der Oberfläche relativ zu dem Farbsensor; DOLLAR A b) kontinuierliches Messen und Aufzeichnen der Sensorsignale; DOLLAR A c) Ermitteln von Kenngrößen aus Zeitintervallen der Sensorsignale; DOLLAR A d) Vergleichen der Kenngrößen mit gespeicherten Größen für definierte Farbmuster und DOLLAR A e) Erkennen eines definierten Farbmusters, wenn die Kenngrößen ähnlich zu den gespeicherten Größen sind.

Verfahren zum Bereitstellen von Daten im Zusammenhang mit der Mundhöhle

Methods and systems using an optical receiver and electro-optic methods to transmit data from integrated computational elements

Spectral imaging using single-axis spectrally dispersed illumination

In-situ infra-red & ultra-violet photometer

A photometer 30 for analysing the composition of a sample gas. The photometer comprises an infra-red (IR) source 20 which directs a first plurality of IR pulses through the gas sample to an IR detector 26. At least two of the pulses may be of different wavelengths. The photometer further comprises an ultraviolet (UV) source 32 configured to send a second plurality of pulses of UV radiation for conveyance to a UV detector 36. At least two of the pulses may be of different wavelengths. A path selection arrangement is configured to selectively convey different UV pulses to either the sample gas or UV detector. Processing circuitry selects the wavelength of a given UV pulse, receives detection signals from the two detectors, and determines the concentration of components in the gas sample. The path selection arrangement may include a rotating member with inner and outer annular slots and may comprise a filter wheel 22. The path selection member may comprise light paths, which may be light guides ...

Spectral imaging using single-axis spectrally dispersed illumination

A system for performing spectral imaging of a target sample comprises a broadband illumination source, optically manipulated such that it produces a generally collimated beam; a spectrally dispersing element, such as a diffraction grating, aligned such that the beam is spectrally spread along the target sample in a first (x) direction; a focussing element such as a cylindrical lens disposed and oriented such that the spectrally dispersed beam is focused onto the target sample only in the first (x) direction, such that the dispersed beam illuminates a two-dimensional area of the target sample; and a two-dimensional imaging array disposed such that it captures two dimensional images of the target sample as the illumination beam is scanned relative to the sample in the first (x) direction. A spectral cube may be assembled incorporating the spectral data for each imaged location. The illumination of a two-dimensional area enables the use of a higher intensity illumination source than with spectrally ...

Optimisation of the laser operating point in a laser absorption spectrometer

An operating value of a first laser parameter of a laser device in a laser absorption spectrometer is optimised. The wavelength of laser device emitted light is adjusted by the first or a second laser parameter. The laser absorption spectrometer 100 comprises a lightintensity detector 120 measuring the laser light intensity from the laser device 110. For each of multiple values of the first laser parameter 112: the light intensity detector measures light intensity obtained across a range of second laser parameter values 114, and an extremum in the light intensity measure and a peak position for the extremum are identified. A range of first laser parameter values is identified within the values of the first laser parameter forwhich there is a continuous trend in changes to the identified peak position with changes to the first laser parameter. The first laser parameter operating value is set to be within the identified range. The laser parameters may comprise the laser diode temperature ...

MONITORING COLOUR OF PRINTED WEB

Photoelectric measuring devices

REFLECTANCE MEASURING METHOD

... 1530947 Measuring reflectance INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1976 [10 Oct 1975] 41548/76 Heading G1A The reflectance of a test sample 28 in the blackened chamber 13 of a spectrophotometer is calculated from its reflected light output and that of a standard white sample, corrections being included for reflection from the chamber walls, wall reflectance for this purpose being calculated from the standard white output and the output of a mirror sample. The white sample may be a ceramic plaque which has been previously compared with a primary standard of barium sulphate to obtain a scaling factor. To compensate for the dark current of the photo-multiplier detector 24 and for the reflectance of the glass plate 27 covering the test sample the output of a black ceramic plaque as sample is measured.

Gem colour meter

An apparatus for determining or classifying the "colour" of a gem stone 13 comprises a source 14, a filter wheel 19 and a photomultiplier 22 for analysing the light passing through the stone in at least two different colour bands (typically red and blue). In another constructional arrangement, Fig. 7 (not shown) the stone is mounted in a hemispherical reflector having input and output of light by light guides. The detector circuit has channels for each colour and means for obtaining difference values therebetween and means for utilising the sum of all channel signals to adjust the gain of the detector. ...

Spectrometer without a cuvette.

Spectrometer without a cuvette.

ANALYTIC QUANTITATIVE DETERMINATION AND PROCESS CONTROL

PROCEDURE AND DEVICE FOR THE PRODUCTION OF A PICTURE OF A TARGET AREA OF A BIOMOLECULAR SENSOR

MULTIPLEX FLUORESCENCE PROOF DEVICE WITH SEVERAL MODULES OPTICAL OVER A FIBER BUNDLE TO A COMMON DETECTOR COUPLING

SPECTROGRAPHIC ANALYSIS DEVICE AT A CONVERTER.

GERÄT ZUR FARBBESTIMMUNG VON ZÄHNEN

The apparatus is used to determine the colour of a tooth (12) in the mouth of a patient. The apparatus has a light source (10) with a visible light spectrum. A first light conductor (20) conveys the light from the light source (10) to the tooth to be examined. A second optical conductor (24) has an end joined to the end of the first conductor (20) to receive light reflected from the surface of the tooth. Both conductors (20,24) are covered by a common flexible sleeve (18). An analysis device (16) is provided to analyse the spectrum of the reflected light. An elastic cuff (22) is arranged at the end (19) of the conductors (20,24) and the sleeve (18) nearest the tooth to shield the tooth (12) from stray light.

MECHANISM FOR THE DETERMINATION OF THE FARBWERTS OF A LIGHT-CURRENT

SPECTROMETER WITH DOUBLE ONE OFF-AXIAL SCHMIDT TELESCOPE

Time-resolved laser-induced fluorescence spectroscopy systems and uses thereof

The invention provides systems for characterizing a biological sample by analyzing emission of fluorescent light from the biological sample upon excitation and methods for using the same. The system includes a laser source, collection fibers, a demultiplexer and an optical delay device.

Devices, systems, and methods for agrochemical detection and agrochemical compositions

Systems, devices, and methods for detecting agrochemicals in environments associated with agricultural equipment are described. Certain agrochemicals that are formulated for being detected using the systems, devices, and methods disclosed herein are also described. The devices, systems, and methods disclosed herein are generally configured to use spectral characteristics to detect agrochemicals in an environment associated with agricultural equipment. The spectral characteristics can be analyzed in various ways to provide different types of information about the agrochemicals and/or the environment.

Method and apparatus for the monitoring and control of combustion

Method and apparatus for generating an image of biomolecular sensor target area

IR spectrographic apparatus and method for diagnosis of disease

Method of using a handheld characteristic analyzer

Disclosed is a method of using a portable handheld characteristic analyzer (300) in order to analyze chemical compositions in or near real-time, the analyzer (300) having at least one integrated computational element arranged therein. One method of using the analyzer (300) to determine a characteristic of a sample (310) includes directing the analyzer (300) at the sample (310), activating the analyzer (300), thereby optically interacting the at least one integrated computational element with the sample (310) and generating optically interacted light, receiving the optically interacted light with at least one detector (212, 216; 420) arranged within the analyzer (300), generating an output signal corresponding to the characteristic of the sample (310) with the at least one detector (212, 216; 420), receiving the output signal with a signal processor (314) communicably coupled to the at least one detector (212, 216; 420), and determining the characteristic of the sample (310) with the signal ...

Optical devices and systems using them

Certain examples described herein are directed to optical devices and systems that include first and second optical elements. In some examples, the first optical element may be configured to pass light received from an excitation source, and the second optical element may be optically coupled to the first optical element and may be configured to reflect incident light from the first optical element back to the first optical element and configured to pass the light reflected from the first optical element. Methods using the devices and systems are also described.

Devices for optically determining a characteristic of a substance

Optical computing devices are disclosed. One exemplary optical computing device (300) includes an electromagnetic radiation source (308) configured to optically interact with a sample (306) and at least two integrated computational elements (302, 304). The at least two integrated computational elements are configured to produce optically interacted light (314), and at least one of the at least two integrated computational elements is configured to be disassociated with a characteristic of the sample. The optical computing device further includes a first detector (316) arranged to receive the optically interacted light (314) from the at least two integrated computational elements and thereby generate a first signal corresponding to the characteristic of the sample.

Spectrograph

A spectrograph (100) as disclosed includes a housing (102), wherein a wall (104) of the housing includes first, second and third openings (106, 108, 110), an entrance slit (112) located at the first opening (106) and configured to direct light along a first light path portion (LP1) in the interior of the housing, a dispersive element (114) located at the second opening (108) and configured to receive light from the entrance slit along the first light path portion and direct light along a second light path portion (LP2) in the interior of the housing, a detector (116) located at the third opening (110) and configured to receive light from the dispersive element along the second light path portion. The detector can include first and second groups of light-sensitive regions (118, 120). A cover (105) can be positioned to separate the first group of light-sensitive regions from the light path, the second group of light-sensitive regions being exposed to the light path.

Raman spectroscopy apparatus and method for continuous chemical analysis of fluid streams

Apparatus and method for measuring optical characteristics of teeth

SIMULTANEOUS MULTI-BEAM PLANAR ARRAY IR (PAIR) SPECTROSCOPY

An apparatus (300') and method capable of providing spatially multiplexed IR spectral information simultaneously in real-time for multiple samples or multiple spatial areas of one sample using IR absorption phenomena requires no moving parts or Fourier Transform during operation, and self-compensates for background spectra and degradation of component performance over time. IR spectral information and chemical analysis of the samples is determined by using one or more IR sources (310, 311), one or more sampling accessories (330, 331) for positioning the sample volumes, one or more optically dispersive elements (350), a focal plane array (FPA) (370) arranged to detect the dispersed light beams, and a processor (380) and display (390) to control the FPA (370), and display(390) to control the FPA (370) and display IR spectrograph.

WAVEFRONT SENSOR AND RELAY FOR OPTICAL MEASUREMENT AND ASSOCIATED METHODS

An optical wavefront sensing system includes a lenslet array positioned for receiving an incoming wavefront. Downstream of the lenslet array is positioned an image transformer, which transforms the image emerging from the lenslet array at a focal plane thereof into a real image. A sensor is positioned at a final image plane for sensing the transformed image. This sensor may comprise, but not intended to be limited to, a charge-coupled-device (CCD) camera. The method for sensing an optical wavefront includes the steps of receiving an incoming wavefront using a lenslet array and transforming an image emerging from the lenslet array at a focal plane thereof into a real image. The transformed image positioned at a final image plane is then sensed, and, in a preferred embodiment, analyzed to determine wavefront distortions.

COLOUR MEASURING DEVICES

METHOD AND APPARATUS FOR GENERATING AN IMAGE OF BIOMOLECULAR SENSOR TARGET AREA

Method and apparatus for imaging a target area. The apparatus comprises an adjustable light emitting device that provides a light beam with a user- defined spectrum. A filter mechanism receives the light beam and directs the light beam towards a target area. A light collection device collects an amount of light reflected from a target area and generates an image from the reflected light.

MULTICOLOR STARING SENSOR SYSTEM

A sensor system for viewing the light energy of a scene has an imaging detector which converts incident light energy into an electrical signal. Two colors are separately imaged by the detector in two imaging regions. The imaging system for each color includes a color filter positioned between the scene and the respective region of the detector, an optical train that forcuses filtered color scene energy, and an optical fiber bundle having an input end that receives the respective color scene energy from the optical train and an output end that directs the color scene energy onto the respective region of the detector using a nonlinear mapping. The optical fiber bundle is formed of a plurality of optical fibers wherein each of the optical fibers has an input shape and size at its input end and an output shape and size at its output end. The output shape and size are different from the input shape and size. The sensor system further includes an electronic device operable to read the electrical ...

METHODS AND APPARATUS FOR CONTEMPORANEOUS FLUORESENCE AND REFLECTANCE MEASUREMENTS WITH MULTIPLE MEASURING DEVICES

Optical systems that provide for simultaneous images and spectra from an object, such as a tissue sample, an industrial object such as a computer chip, or any other object that can be viewed with an optical system such as a microscope, endoscope, telescope or camera. In some embodiments, the systems provide multiple images corresponding to various desired wavelength ranges within an original image of the object, as well as, if desired, directional pointer(s) that can provide both an identification of the precise location from which a spectrum is being obtained, as well as enhancing the ability to point the device.

APPARATUS AND METHOD FOR MEASURING AND CORRELATING CHARACTERISTICS OF FRUIT WITH VISIBLE/NEAR INFRA-RED SPECTRUM

This disclosure is of 1) the utilization of the spectrum from 250 nm to 1150 nm for measurement or prediction of one or more parameters, e.g., brix, firmness, acidity, density, pH, color and external and internal defects and disorders including, for example, surface and subsurface bruises, scarring, sun scald, punctures, in N-H, C-H and O-H samples including fruit; 2) an apparatus and method of detecting emitted light from samples exposed to the above spectrum in at least one spectrum range and, in the preferred embodiment, in at least two spectrum ranges of 250 to 499 nm and 500 nm to 1150 nm; 3) the use of the chlorophyl band, peaking at 680 nm, in combination with the spectrum from 700 nm and above to predict one or more of the above parameters; 4) the use of the visible pigment region, including xanthophyll, from approximately 250 nm to 499 nm and anthocyanin from approximately 500 to 550 nm, in combination with the chlorophyl band and the spectrum from 700 nm and above to predict the ...

TEXTILE COLOR ANALYZER CALIBRATION

SPECTROMETER, IN PARTICULAR A REFLECTION SPECTROMETER

The invention relates to a reflection spectrometer provided with a probe to which the radiation of at least one radiation source can be transmitted by means of at least one radiation emission conductor-transmitter in such a way that said radiation source can be directed to or in an investigated object and which makes it possible to transmit a radiation, in particular fluorescent, reflected and/or diffused to or in an investigated object and/or emitted by said object to a radiation receiver that can be connected to an evaluation unit by means of at least one radiation emission conductor. The inventive reflection spectrometer is characterised in that it comprises a plurality of radiation sources whose radiation intensities are respectively adjustable, have a large emission range for a radiation source or for all radiation sources and are directly connected to a respective radiation emission conductor. The radiation receiver receives the entire spectrum of an incident radiation in the radiation ...

A DETECTOR SYSTEM COMPRISING A PLURALITY OF LIGHT GUIDES AND A SPECTROMETER COMPRISING THE DETECTOR SYSTEM

A detector system (100) comprising a plurality of light guides (11a, 11b, 11c, 11d) is provided. Each light guide (11a, 11b, 11c, 11d) is guiding incoming light from a respective object in use, wherein the incoming light is provided by means of an illuminating means (10). The detector system (100) comprises diffracting means (12) for diffracting the incoming light in different wavelength ranges, at least one focuser (13) for projecting the incoming light exiting the light guides onto the diffracting means, a detector (14) having a detector area for receiving the diffracted light from the plurality of Sight guides, and a control unit (15). These are arranged to pulsate incoming light via only one light guide at a time based on a pulse timing parameter, and record a spectrum of light diffracted from each light guide and detected by the detector (14) based on the pulse timing parameter.

LASER SPECKLE REDUCTION AND PHOTO-THERMAL SPECKLE SPECTROSCOPY

A method of reducing laser speckle by reflecting an infrared laser off a rotating diffuser and coupling the diffused light into a multi-mode optical fiber. Also disclosed is a photo-thermal speckle spectroscopy device having an infrared laser, a visible laser, a foam, and a camera. The infrared and visible lasers are focused on the foam, which causes the visible laser to scatter. A camera records the speckle pattern, which shifts when the IR laser is tumed on. The related method of photo-thermal speckle spectroscopy is also disclosed.

APPARATUS FOR OPTICAL APPLICATIONS, SPECTROMETER SYSTEM AND METHOD FOR PRODUCING AN APPARATUS FOR OPTICAL APPLICATIONS

The present invention relates to an apparatus for optical applications, a spectrometer system and method for producing an apparatus for optical applications, and in particular to an apparatus comprising an optical waveguide having a first refractive index along a light propagation axis interrupted by a plurality of scattering portions having a second refractive index. Each scattering portion has a long axis substantially perpendicular to the light propagation axis as well as a short axis substantially perpendicular to the light propagation axis and the long axis. A receiver unit or a transmitter unit is arranged on a side of the optical waveguide, the long axis being substantially perpendicular, i.e. normal to the plane of this side on which the receiver unit or transmitter unit is arranged. Accordingly, simplification and miniaturization of an optical apparatus can be realized.

MONOLITHIC ASSEMBLY OF REFLECTIVE SPATIAL HETERODYNE SPECTROMETER

Novel monolithic cyclical reflective spatial heterodyne spectrometers (CRSHS) are presented. Monolithic CRSHS in accordance with the invention have a single frame wherein a flat mirror, roof mirror, and symmetric grating are affixed. The invention contains only fixed parts; the flat mirror, roof mirror, and symmetric grating do not move in relation to the frame. Compared to conventional CRSHS known in the art, the present invention enables much smaller and lighter CRSHS, requires less time and skill for maintenance, and is a better economic option. The disclosed invention may include fixed field-widening optical elements or a fiber-fed assembly.

INTEGRATED HIGH SPECTRAL RESOLUTION OPTICAL SPECTROMETER WITH, IN PARTICULAR FOR HIGH-SPEED TELECOMMUNICATIONS AND METROLOGY, AND METHOD FOR MAKING SAME

MULTIPLEX FLUORESCENCE DETECTION DEVICE HAVING FIBER BUNDLE COUPLING MULTIPLE OPTICAL MODULES TO A COMMON DETECTOR

Techniques are described for the detection of multiple target species in real- time PCR (polymerase chain reaction). For example, a system is described that includes a data acquisition device and a detection device coupled to the data acquisition device. The detection device includes a rotating disk having a plurality of process chambers having a plurality of species that emit fluorescent light at different wavelengths. The device further includes a plurality of optical modules. Each of the optical modules is optically configured to excite the species and capture fluorescent light emitted by the species at different wavelengths. A fiber optic bundle coupled to the plurality of optical modules conveys the fluorescent light from the multiple optical modules to a single detector.

METHOD AND APPARATUS FOR DETERMINING DOCUMENT AUTHENTICITY

A method and apparatus for verifying the authenticity of a document relative to a previously programmed document are disclosed. The method provides a broadband light source; illuminates a document with the light source; collects reflected light (104); converts it into a corresponding electrical signal or signals; digitizes the electrical signal (116); and prepares a spectral signature of the document for further analysis. The method also provides for comparing (120) a previously programmed and stored spectral signature to the spectral signature of a test document using a matching value to indicate whether the test document is authentic or not.

SPECTROPHOTOMETER COMPRISING TWO DETECTORS FOR OVERLAPPING WAVELENGTH RANGES

A spectrophotometer has a first photodetector (24) and a second photodetecto r (25) which is displaced spatially from the first photodetector in the direction of increasing wavelength in the spectrum. At any given time the second photodetector receives light at a wavelength which is substantially greater than that being received simultaneously by the first photodetector a t that time. The first photodetector has a first range of wavelengths over whi ch it is operable and a first upper operating limit, and the second photodetect or has a second range of wavelengths over which it is operable and a second upp er operating limit, the second range overlapping the first range and the second upper operating limit being greater than the first upper operating limit. Th us the range of operation is extended, and data in two different ranges is processed simultaneously. The spectrophotometer comprises a housing (1) containing a light source (11), a monochromator (15, 16, 18) and the photodetectors ...

SEED SORTER

The present disclosure provides systems and methods for sorting seeds based on identified phenotypes of the seeds. In various embodiments, the system includes an optics and controller station structured and operable to collect image data of a top portion, a bottom portion and a plurality of side portions of each respective seed in a set of seeds, and to analyze the collected image data to determine whether each seed exhibits a desired phenotype. The system further includes a seed loading, transporting and sorting station structured and operable to singulate each seed of the set of seeds from a plurality of seeds in a bulk seed hopper, transport the set of seeds to the optics and controller station, and selectively sort each seed to a respective one of a plurality of seed repositories based on whether each respective seed exhibits the desired phenotype.

METHOD AND APPARATUS FOR GOLD DETECTION

A gold detection apparatus capable of detecting gold in field mineral samples such as rock or soil with little or no preparation. Light in red and violet wavelengths is directed at a surface of a mineral sample and the reflected light intensity is measured by an array of sensors or pixels. Based on the characteristic reflectance properties of gold, the reflected light intensity in each wavelength is used to determine the presence of gold particles.

INDUSTRIAL COLORIMETER HAVING LIGHT INTENSITY COMPENSATION MEANS

A colorimeter provides compensation for changes in the color signature of an object due to lamp aging, stand off distance and view angle changes. The colorimeter senses and stores values indicative of a sample object. In use, the colorimeter senses and creates values indicative of an object. The colorimeter includes a processor which then creates an average ratio wherein the stored values and corresponding sensed values are placed in a ratio, all of the ratios are then summed, and the total is divided by the number of values. Finally, the processor compares the sensed values with corresponding stored values, wherein one of the two values is adjusted by the average ratio.

SPECTROMETER

The present invention concerns an LED spectrometer operating without moving parts, according to the sweep principle, and appropriate to serve as a structural component in many kinds of spectroscopic concentration analysers. The design of the invention affords the advantage that, even at its minimum, the optical power of the LED spectrometer of the invention is about fivefold compared with designs of prior art. Furthermore, improvement of the efficiency of the LED radiation source and of that of the optics has brought a multiple augmentation in power to the wavelength spectrum sent out by the radiation source. In the design of the invention, concentrators (6) of non-imaging type are used to collimate the wavelength spectrum emitted by the LEDs (3).

Colorimètre

Vorrichtung zum Vergleich der spektralen Remission farbiger Flächen

Remissionsdensitometer

Colour measurement and/or recognition device has transmitter module whose emitted light is focused onto specimen, receiver module receiving light from specimen

The device has a transmitter module (1) whose emitted light is focused onto the specimen (2) and a receiver module (3) contg. at least one light receiver (33) arranged so that light from the specimen can be received by the receiver. A reference receiver module is used to regulate the power of the light sources (10,1-10.3) or for computer compensation of digital colour measurement values. An Independent claim is also included for an arrangement in a colour measurement and/or detection device and for a method of colour measurement and/or recognition.

Apparatus for determining colour of teeth

The apparatus is used to determine the colour of a tooth (12) in the mouth of a patient. The apparatus has a light source (10) with a visible light spectrum. A first light conductor (20) conveys the light from the light source (10) to the tooth to be examined. A second optical conductor (24) has an end joined to the end of the first conductor (20) to receive light reflected from the surface of the tooth. Both conductors (20,24) are covered by a common flexible sleeve (18). An analysis device (16) is provided to analyse the spectrum of the reflected light. An elastic cuff (22) is arranged at the end (19) of the conductors (20,24) and the sleeve (18) nearest the tooth to shield the tooth (12) from stray light.

INTERFEROMETER, AS WELL AS SPECTROMETER WITH SUCH.

Ein Interferometer zur Erzeugung eines Interferenzmusters umfasst eine Lamellargittereinheit (5) mit Reflexionsflächen zur Reflexion des Lichts, eine Lichtaussendeeinheit (1) zum Aussenden des Lichts auf die Lamellargittereinheit (5) und eine Lichtempfangseinheit (2) zum Empfang des von der Lamellargittereinheit (5) reflektierten Lichts. Die Lichtaussendeeinheit (1) umfasst eine Vielzahl einzelner Lichtleiter (110), welche in mindestens einer Lichtleiterreihe (11) angeordnet sind und das Licht als Strahlenbündel auf die Lamellargittereinheit (5) senden. Das Strahlenbündel kann unmittelbar auf die Lamellargittereinheit (5) gerichtet sein. Das erfindungsgemässe Interferometer und das dieses Interferometer verwendende Spektrometer ermöglichen die Auswertung von relativ viel Licht und weisen somit eine erhöhte Sensitivität auf.

bezkolbovyi spectrometer

ATOMIC ABSORPTION SPECTROMETER ON THE BASIS OF THE ZEEMAN EFFECT

OPTICAL FIBER LASER SORTER

SENSOR COMPONENTS SOIL, INSTALLED IN PLOUGHSHARE IN

Systems and methods for internal surface conditioning assessment in plasma processing equipment

Optical system for simultaneous detecting calibration system and test signal in optical spectrum analyser

DEVICE OF SPECTROMETRY FOR the ANALYSIS Of a FLUID

METHOD AND DEVICE FOR DETERMINING THE COLOR, ESPECIALLY A DENTAL PROSTHESIS

[...] ANALYSIS DEVICE.

COLORIMETRE TRICHROMATIQUE PERFECTIONNE

La présente invention concerne un colorimètre trichromatique. Le colorimètre comprend un système optique 2 qui applique cycliquement, séquentiellement, à même photodétecteur 3 des faisceaux lumineux colorés inconnus et de référence. Les signaux électriques inconnus et de référence sont appliqués, après amplification et étalonnage par des circuits adaptés à chaque couleur 7, 8, 9 multiplexés, respectivement à l'entrée non inverseuse et à l'entrée inverseuse d'un intégrateur à double pente Il qui reçoit également, d'un circuit 18, un signal de compensation de l'erreur de réflectance du système optique. Le signal de sortie de l'intégrateur commande l'affichage visuel de valeurs numériques indicatives de l'intensité des couleurs du faisceau inconnu. Le colorimètre est applicable, notamment, à la mesure de la couleur des dents.

PROCESS OF CALIBRATION Of a SPECTROPHOTOMETER

JUST OPTICAL SPECTROMETER HAS SPECTRAL HIGH-RESOLUTION, IN PARTICULAR FOR TELECOMMUNICATIONS HAS HIGH BANC AND METROLOGY, AND MANUFACTORING PROCESS

OPTICAL FIBER SENSOR HAVING A EVANESCENT WAVE

OPTICAL PROBE SYSTEM FOR COMBUSTOR

Monitoring system for deep storage of radioactive waste, uses fibreoptic coupled spectrometer is non intrusive

Le dispositif de surveillance de l'invention comporte un dispositif de mesure optique spectrométrique à diode laser (24) disposé à distance de l'enceinte à surveiller (2') et relié optiquement par fibre optique (22) à cette enceinte, la fibre optique débouchant devant une fenêtre (21) pratiquée dans l'enveloppe extérieure (3'), le dispositif de mesure étant chargé de détecter la présence, entre les deux enveloppes de l'enceinte, d'un gaz normalement uniquement présent à l'intérieur de l'enceinte intérieure (4). Application : surveillance du stockage en profondeur de déchets hautement radioactifs.

AERONAUTICAL MACHINE

DEVICE OF OPTICAL MEASUREMENT, IN PARTICULAR FOR THE MONITORING OF QUALITY IN CONTINUOUS PROCESSES

L'invention se rapporte à un dispositif de mesure optique, notamment pour la surveillance de la qualité dans des processus continus. Ce dispositif comprend une tête de mesure (1) disposée directement à côté d'un objet de mesure (M), une source de lumière de mesure (3) retenue à la tête de mesure (1) pour éclairer une tache (F) à l'objet de mesure (M), un dispositif de réception de lumière de mesure (6), au moins un spectromètre qui est couplé optiquement par un dispositif de guidage de lumière (7) au dispositif de réception de lumière de mesure (6), où le spectromètre et le dispositif de guidage de lumière (7) sont reçus dans la tête de mesure (1) ainsi qu'un dispositif de traitement de signaux (12) qui est également reçu dans la tête de mesure (1). L'invention est applicable notamment dans le domaine des dispositifs de mesure optique.

TRICHROMATIC COLORIMETER IMPROVES

DEVICE OF SPECTROMETRY FOR the ANALYSIS Of a FLUID

L'invention concerne un dispositif de spectrométrie comprenant : un dispositif d'éclairage configuré pour générer un faisceau lumineux couvrant une bande de longueurs d'ondes, une sonde (PRB) configurée pour que le faisceau lumineux issu du dispositif d'éclairage interagisse avec un fluide à analyser (20), et un dispositif d'analyse spectrale configuré pour recevoir le faisceau lumineux après avoir interagi avec le fluide à analyser, et pour fournir des mesures d'intensité lumineuse pour différentes plages de longueurs d'onde, la sonde (PRB) comprenant un réflecteur (13) de type rétro réfléchissant vers la source de lumière, disposé de manière à recevoir le faisceau lumineux issu du dispositif d'éclairage au travers du fluide à analyser et à le réfléchir sensiblement dans une direction opposée en l'élargissant légèrement vers un guide de lumière de recueil (12) associé au réflecteur et au dispositif d'analyse spectrale de manière à recueillir au moins partiellement le faisceau lumineux ...

Optical system for multi-channel fluorescence measurement of microfluidic chip and multi-channel fluorescence sample analyzer

Optical configuration method for spectral-scattered oil-cell analysis

Raman probe and spectroscopic analysis apparatus using the Raman probe for in vivo biological components

분광기를 이용하여 특수 설계된 패턴 폐루프 보정에 의한 고 정확도의 영상 색도계

... 본 명세서는 보다 정확한 출력을 포함할 수 있는 광대역 색도계를 제공하는 방법에 관한 다양한 실시예들을 설명한다. 일실시예에서, 분광계 또는 분광기 등의 협대역 장비는 광대역 색도계의 보정에 사용될 수 있고, 따라서 더 정확한 출력이 제공될 수 있다. 일실시예에서, 광대역 색도계 및 협대역 분광기로 구성된 광 테스트 장비는 보다 정확하게 보정된 광대역 색도계를 제공하는데 사용될 수 있다. 예로서, 광대역 색도계 및 협대역 분광기로 구성된 하이브리드 시스템인 스펙트럼 카메라는 광대역 색도계 및 협대역 분광기에 의한 동시 테스트에 사용될 수 있다. 통시 테스트에 의해 광대역 색도계의 정확한 보정이 달성될 수 있다. 본 명세서는 협대역 다중 채널 분광계를 갖는 광대역 세 채널 색도계를 특징화하는 수학적 모델을 더 기술한다.

METHODS AND DEVICES FOR DETERMINING A CHARACTERISTIC OF A SUBSTANCE OPTICALLY

Se revelan dispositivos informáticos ópticos. Un dispositivo informático óptico ejemplar incluye una fuente de radiación electromagnética configurada para interactuar ópticamente con una muestra y por lo menos dos elementos informáticos integrados. Por lo menos los dos elementos informáticos integrados se pueden configurar para producir luz de interacción óptica, y por lo menos uno de por lo menos los dos elementos informáticos integrados se puede configurar para ser disociados con una característica de la muestra. El dispositivo informático óptico además incluye un primer detector dispuesto para recibir la luz de interacción óptica de por lo menos dos elementos informáticos integrados y así generar una primera señal que corresponde a la característica de la muestra.

Systems for providing illumination in optical metrology

The disclosure is directed to systems for providing illumination to a measurement head for optical metrology. In some embodiments of the disclosure, illumination beams from a plurality of illumination sources are combined to deliver illumination at one or more selected wavelengths to the measurement head. In some embodiments of the disclosure, intensity and/or spatial coherence of illumination delivered to the measurement head is controlled. In some embodiments of the disclosure, illumination at one or more selected wavelengths is delivered from a broadband illumination source configured for providing illumination at a continuous range of wavelengths.

Portable spectrometer, method of generating a spectrum, andportable spectrometer system

Sistema de medida de alta precision en tiempo real de la atenuación atmosférica de una radiación electromagnética de al menos una fuente y metodo de medida.

LA PRESENTE INVENCIÓN SE REFIERE A UN SISTEMA DE MEDIDA DE LA ATENUACIÓN MONOCROMÁTICA PARA CADA LONGITUD DE ONDA DEL ESPECTRO ENTENDIENDO COMO TAL LA ATENUACIÓN A UNA LONGITUD DE ONDA DEL ESPECTRO CON LA ANCHURA ESPECTRAL QUE PROPORCIONA EL EQUIPO DE MEDIDA, DE LA ATENUACIÓN ESPECTRAL EN EL RANGO ESPECTRAL DE MEDIDA, ENTENDIENDO COMO TAL EL CONJUNTO DE ATENUACIONES MONOCROMÁTICAS EN TODAS LAS LONGITUDES DE ONDA A LO LARGO DEL RANGO ESPECTRAL DE MEDIDA, Y DE LA ATENUACIÓN TOTAL, ENTENDIENDO COMO TAL LA ATENUACIÓN QUE SE CALCULA MEDIANTE LA INTEGRACIÓN DE LA ATENUACIÓN ESPECTRAL EN EL RANGO ESPECTRAL DE MEDIDA PONDERADA CON EL ESPECTRO SOLAR. LA INVENCIÓN TAMBIÉN SE REFIERE A UN MÉTODO DE MEDIDA, QUE PROPORCIONA LA MEDIDA DE LA ATENUACIÓN EN TODO EL RANGO ESPECTRAL PARA LA MEJOR EVALUACIÓN DEL RENDIMIENTO DE SISTEMAS ENERGÉTICOS Y PARA CONSEGUIR UNA MEDIDA DIFERENCIADA DE LOS FENÓMENOS METEOROLÓGICOS QUE CAUSAN DICHA ATENUACIÓN, PROPORCIONANDO ASÍ INFORMACIÓN RELEVANTE PARA LA PREDICCIÓN ...

Optical measurement apparatus, optical measurement system, and fiber coupler

AN APPARATUS AND METHOD FOR DETECTING RAMAN AND PHOTOLUMINESCENCE SPECTRA OF A SUBSTANCE

An apparatus and method for detecting Raman and photoluminescence spectra of a substance and identifying said substance by Raman and/or photoluminescence spectral characteristics of said substance are disclosed. An apparatus comprises a replaceable laser source aggregate with a laser source, a collimating system, a socket for receiving said replaceable laser source aggregate, while ensuring the operation of said apparatus with no further adjustment of a positioning of said collimating system or said laser source, a filtering system, a light dispersing system optimized for a spectral resolution and a spectral range sufficient to simultaneously obtain Raman and photoluminescence spectra of said substance, a detector, and at least one controller for processing electrical signals. The disclosed and claimed method provides for obtaining Raman and photoluminescence spectra of a substance simultaneously, for separating said spectra into components based on Raman and photoluminescence contents, ...

Methods and apparatus for normalizing optical emission spectra

A processing system having a chamber for in-situ optical interrogation of plasma emission to quantitatively measure normalized optical emission spectra is provided. The processing chamber includes a confinement ring assembly, a flash lamp, and a set of quartz windows. The processing chamber also includes a plurality of collimated optical assemblies, the plurality of collimated optical assemblies are optically coupled to the set of quartz windows. The processing chamber also includes a plurality of fiber optic bundles. The processing chamber also includes a multi-channel spectrometer, the multi-channel spectrometer is configured with at least a signal channel and a reference channel, the signal channel is optically coupled to at least the flash lamp, the set of quartz windows, the set of collimated optical assemblies, the illuminated fiber optic bundle, and the collection fiber optic bundle to measure a first signal.

System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems

A system for reducing effects relating to stretching of an optical fiber includes an optical control source, the optical source outputting an optical signal, a terahertz transmitter and receiver both being optically coupled to the optical source, and a means for providing the optical signal to both the terahertz transmitter and terahertz receiver such that the terahertz receiver is synchronized to the terahertz transmitter by the optical signal. The means prevents the stretching of an fiber carrying the optical signal provided to the terahertz transmitter or terahertz receiver or allows for the stretching an optical fiber such that the terahertz receiver will still be synchronized to the terahertz transmitter by the optical signal.

Fiber optic probes utilizing grin lenses for spatially precise optical spectroscopy

The invention provides improved fiber optic probe assemblies which utilize a configuration of gradient index (GRIN) lenses to deliver light to a focal point and collect light for analysis from the same focal point. Also provided are methods for manufacturing the probe assemblies and related methods of spatially precise spectroscopy using the probe assemblies.

Multi-path spectrometer

A spectrometer in accordance with the present disclosure may provide multiple optical paths from the inputs to the camera, where the paths are as nearly identical as possible. For example, a spectrometer in accordance with the present disclosure may include multiple inputs, input optics, a diffraction grating, output optics, and a camera. The multiple inputs may be imaged onto different sections of the camera using the same input optics, the same diffraction grating, and the same output optics.

Optical fiber measurement device and measurement method using same

Disclosed is a highly reliable optical fiber measurement device and measurement method having a simple and compact structure. The device includes a planar liquid holder having a plurality of liquid holding portions arranged along a flat face; a plurality of light receiving optical fibers for transmitting fluorescence generated in the liquid holding portions; a plurality of light emitting optical fibers for transmitting excitation light into the liquid holding portions; a measurement head capable of being positioned in the each liquid holding portion while supporting a plurality of measurement ends having a bundle of one light receiving end of the light receiving optical fibers and one light emitting end of light emitting optical fibers; a light reception selecting element that, by sequentially selecting one by one from plural the light receiving optical fibers and sequentially selecting one by one from plural kinds of wavelength or wavelength bands, sequentially guides the light of the selected wavelength or wavelength band of the fluorescence received by the selected light receiving optical fibers to one photoelectric element; and a photoelectric element for sequentially conducting photoelectric conversion on the guided fluorescence.

Filtered fiber optic probe

The invention provides improved multi-fiber, fiber optic probe assemblies in which the component parts are adapted for rapid assembly with precise alignment. Some embodiments are adapted to illuminate and collect light from a sample at a particular depth while minimizing interference arising from within the probe assembly itself. Also provided are methods for manufacturing the probe assemblies and optical apparatuses including the probe assemblies.

Optical system enabling low power excitation and high sensitivity detection of near infrared to visible upconversion phoshors

A simple yet high performance optical system is described which is tailored to enabling efficient detection of the luminescence emissions of near infrared-to-visible upconverting phosphors. The system is comprised of simple and relatively low cost optical components and is designed to telecentrically enable low optical power NIR excitation and high sensitivity VIS and NIR detection of the upconverting phosphor (UCPs), particularly the lanthanide doped UCP nanocrystals which show great promise for utility as molecular taggants in many applications of biomedicine, security and environmental monitoring. The overall system is designed to facilitate compact spectrophotometric instrument manufacture and is adaptable to multiple liquid or solid sample types and formats.

Universal multidetection system for microplates

An apparatus for optically analyzing a sample may include an imaging subsystem that images the sample, one or more analyzing subsystems that analyze the sample, a temperature control subsystem that controls a temperature of the atmosphere within the apparatus, a gas control subsystem that controls a composition of the atmosphere within the apparatus, and a control module that controls the various subsystems of the apparatus.

Method and device for plasma-treating workpieces

The method and device are used to plasma-treat workpieces. The workpiece is inserted into a chamber of a treatment station that can be at least partially evacuated. The plasma chamber is bounded by a chamber bottom, a chamber cover, and a lateral chamber wall. The method process is optically monitored at least at times. In the optical monitoring, spectral lines of the radiation of the plasma above 500 nanometers are evaluated. Preferably, the evaluation is performed for frequencies above 700 nanometers.

Apparatus and method for measuring color

Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention.

Dynamic signal extension in optical detection systems

Systems and methods for measuring a target in a sample, the target being capable of generating an emitted light in response to an excitation light. In an example system, an excitation light source generates the excitation light along an excitation optical path. An attenuation filter arrangement selectively adds an attenuation filter to the excitation optical path. The attenuation filter attenuates the excitation light by a corresponding attenuation factor. The excitation light exits the attenuation filter arrangement along the excitation optical path to illuminate the sample. A light energy detector receives the emitted light generated in response to the excitation light, and outputs a measured signal level corresponding to an emitted light level. If the light energy detector indicates an overflow, signal measurement is repeated with attenuation filters of increasing attenuation factors until the measured signal level does not overflow.

Spectrophotometer

In a spectrophotometer of the single-beam type, highly stable transmission and absorption spectra can be obtained with a high SNR while drifting is suppressed and for a long time even when the amount of light from the light source is varied over time. The spectrophotometer includes: a light source; a sample cell; a polychromator that generates a transmission spectrum of a sample in the sample cell by dispersing a portion of light from the light source that has passed through the sample into a plurality of spectral components; an image sensor that detects the transmission spectrum of the sample; a light source monitoring photodetector that detects a portion of the light from the light source that has not passed through the sample cell; and an operation unit that corrects the transmission spectrum of the sample by using an output signal from the light source monitoring photodetector.

WAVEGUIDE LOCALIZED RAMAN SPECTROSCOPY

A Raman spectroscopic detection device comprising at least one microfluidic sample channel; at least one excitation waveguide for exciting a Raman signal and at least one collection waveguide for collecting a Raman signal. The output of the excitation waveguide and the input of the collection waveguide are positioned directly in the microfluidic sample channel. 1. A Raman spectroscopic detection device comprising:at least one microfluidic sample channel; and at least one excitation waveguide for exciting a Raman signal, wherein the at least one excitation waveguide is positioned so that its output end is in the at least one microfluidic sample channel; or', 'at least one collection waveguide for collecting a Raman signal, wherein the at least one collection waveguide is positioned so that its input end is in the at least one microfluidic sample channel., 'at least one of2. A device as claimed in wherein the at least one collection waveguide or the at least one excitation waveguide is an optical fiber.3. A device as claimed in wherein the at least one excitation waveguide or the at least one collection waveguide is embedded in the detection device.4. A device as claimed in wherein said detection device comprises at least one excitation waveguide claim 1 , and wherein no optical elements are between an end of the at least one excitation waveguide and the at least one microfluidic sample channel to modify an output beam profile of the at least on excitation waveguide.5. A device as claimed in wherein said detection device comprises at least one collection waveguide claim 1 , and wherein no optical elements are between an end of the at least one collection waveguide and the at least one microfluidic sample channel.6. A device as claimed in wherein said detection device comprises both at least one excitation waveguide and at least on collection waveguide claim 1 , and wherein a distance between an end of an excitation waveguide and a corresponding collection waveguide is ...

High-lifetime broadband light source for low-power applications

Embodiments described herein include broadband light source system comprising an optic coupler including a plurality of input branches coupled to an output. The system includes a plurality of light sources coupled to the plurality of input branches. Each light source outputs light having a different wavelength distribution than any other light source of the plurality of light sources. The output emits a broadband light source comprising a combined spectral output of the plurality of light sources.

Laser emission device and method for the spectroscopic analysis of a sample

According to one aspect, the invention relates to a laser emission device for the spectroscopic analysis of a sample, comprising: a primary laser source ( 401 ) emitting a pump beam (I 5 ) and an excitation beam (I 2 ), said two beams being pulsed and having a nanosecond or subnanosecond pulse time; a non-linear optical fibre ( 406 ) into which the excitation beam is injected in order to form a probe beam (I 4 ) having a wide spectral band; a device ( 405 ) for controlling the time profile of either the pump beam or the excitation beam, allowing compensation of the time spreading of the probe beam generated by the non-linear optical fibre, in order to obtain pump and probe beams having similar pulse times; and means ( 409 ) for spatially overlaying of the pump and probe beams for the spectroscopic analysis of the sample.

Illumination system

An illumination system includes a light source device configured by an excitation light source, a light guiding member and a wavelength converter that are connected in order, and an operation check device. The system further includes: a connector configured to directly and physically connect the operation check device to a light signal emitting end which includes the wavelength converter; a detector configured to detect a light signal emitted from the light signal emitting end when the light signal emitting end and the operation check device are connected by the connector; and an operation determiner configured to determine the operations of the excitation light source, the light guiding member, and the wavelength converter by a detection result in the detector.

Optical characteristic measuring apparatus

An optical characteristic measuring apparatus includes a hemispheric portion having a reflective surface on its inner wall, and a plane portion arranged to close an opening of the hemispheric portion and having a reflective surface on an inner-wall side of the hemispheric portion. The plane portion includes a first window occupying a range including a substantial center of curvature of the hemispheric portion for attaching a light source to the first window. At least one of the hemispheric portion and the plane portion includes a plurality of second windows arranged in accordance with a predetermined rule for extracting light from inside the hemispheric portion.

Optical Characteristic Measuring Apparatus and Method

An optical characteristic measuring apparatus and an optical characteristic measuring method of the invention are an optical characteristic measuring apparatus and method for obtaining a predetermined optical characteristic such as a color value or a total spectral radiation factor of a measurement object. A spectral intensity distribution of predetermined ambient light entering through a measurement opening is measured and stored prior to measurement of the optical characteristic. In measuring the optical characteristic, an optical characteristic in a condition that actually measured ambient light is used as an observation light source is obtained, with use of the stored spectral intensity distribution of ambient light.

Seed sorter

A seed sorter system is operable to sort seeds based on one or more characteristics of the seeds. The system includes a seed loading station operable to isolate individual seeds from a plurality of seeds and load the isolated seeds into a seed tray, an imaging and analysis subsystem operable to collect image data of at least a top portion and a bottom portion of each of the seeds in the seed tray and determine one or more characteristics of each of the seeds, a seed off-load and sort station operable to remove the seeds from the seed tray and sort the seeds to desired receptacles based on the determined one or more characteristics of the seeds, and a seed transport operable to move the seed tray between the seed loading station, the imaging and analysis subsystem, and the seed off-load and sort station.

Handheld Characteristic Analyzer and Methods of Using the Same

Disclosed is a portable handheld characteristic analyzer used to analyze chemical compositions in or near real-time. One method of using the analyzer to determine a characteristic of a sample includes directing the handheld characteristic analyzer at the sample, the handheld characteristic analyzer having at least one integrated computational element arranged therein, activating the handheld characteristic analyzer, thereby optically interacting the at least one integrated computational element with the sample and generating optically interacted light, receiving the optically interacted light with at least one detector arranged within the handheld characteristic analyzer, generating an output signal corresponding to the characteristic of the sample with the at least one detector, receiving the output signal with a signal processor communicably coupled to the at least one detector, and determining the characteristic of the sample with the signal processor.

OPTICAL PROBE AND METHOD OF OPERATING THE OPTICAL PROBE

An optical probe () for optically examining an object () is described, said optical probe having a first optical beam path for a scanning imaging method and a second optical beam path for a spectroscopic method. The optical probe comprises a first optical fibre () in the first optical beam path and a scanning apparatus () that is configured to laterally deflect the first optical fibre () or illumination light () emerging from the first optical fibre () for the purposes of scanning the object () during the scanning imaging method. The optical probe comprises a second optical fibre () in the second optical beam path, said second optical fibre being configured to guide excitation light or detected object light for the spectroscopic method, and a beam splitter filter (), wherein the beam path of the scanning imaging method and the beam path of the spectroscopic method are brought into partial overlap in the probe () by means of the beam splitter filter (). The optical probe () has a diameter of no more than 5 mm. Furthermore, a method for operating the optical probe () is specified. 1. An optical probe comprising:a rear end for connection to an evaluation unit and a front end for optically inspecting an object;a first optical beam path for a scanning imaging method and a second optical beam path for a spectroscopic method;a first optical fiber in the first optical beam path configured to guide an illumination light for the scanning imaging method toward the front end of the probe and to guide object light returning from the object to the rear end of the probe;a scanning apparatus configured to laterally deflect the first optical fiber or the illumination light emerging from the first optical fiber for scanning the object in the scanning imaging method;a second optical fiber in the second optical beam path configured to guide an excitation light or a detected object light for the spectroscopic method; anda beam splitter filter, wherein the first optical beam path of the ...

Integrated bound-mode spectral/angular sensors

A 2-D sensor array includes a semiconductor substrate and a plurality of pixels disposed on the semiconductor substrate. Each pixel includes a coupling region and a junction region, and a slab waveguide structure disposed on the semiconductor substrate and extending from the coupling region to the region. The slab waveguide includes a confinement layer disposed between a first cladding layer and a second cladding layer. The first cladding and the second cladding each have a refractive index that is lower than a refractive index of the confinement layer. Each pixel also includes a coupling structure disposed in the coupling region and within the slab waveguide. The coupling structure includes two materials having different indices of refraction arranged as a grating defined by a grating period. The junction region comprises a p-n junction in communication with electrical contacts for biasing and collection of carriers resulting from absorption of incident radiation.

SYSTEMS AND METHODS FOR RAMAN SPECTROSCOPY

A method of performing Raman spectroscopy can include guiding a Raman pump beam with an optical fiber, where the Raman pump beam inducing fluorescence in the optical fiber. The beam and the fluorescence are coupled to a photonic integrated circuit (PIC) via the fiber. The beam is used to excite a sample in optical communication with the PIC via evanescent coupling and induces Raman scattering in the sample. The Raman scattering is collected via the PIC, and the Raman pump beam as well as the fluorescence is filtered out from the Raman scattering via the PIC. 1. A photonic integrated circuit (PIC) for Raman spectroscopy , the PIC comprising:a semiconductor substrate;an optical port, integrated with the semiconductor substrate, to receive a Raman pump beam from an optical fiber;a first filter, integrated with the semiconductor substrate and coupled to the optical port, to transmit the Raman pump beam and to reject fluorescence induced in the optical fiber by the Raman pump beam;a sample waveguide, integrated with the semiconductor substrate and coupled to the first filter, to receive the Raman pump beam, to excite a sample in optical communication with the sample waveguide with at least a portion of the Raman pump beam via evanescent coupling, and to receive a scattering signal from the sample in response to the portion of the Raman pump beam; anda second filter, integrated with the semiconductor substrate and coupled to the sample waveguide, to transmit the scattering signal and to block the remaining portion of the excitation beam.2. The PIC of claim 1 , wherein the sample waveguide is in optical communication with the sample via an external surface of the semiconductor substrate.3. The PIC of claim 2 , wherein at least a portion of the external surface that is in optical communication with the sample waveguide includes a coating comprising at least one of a fluorinated polymer or aluminum oxide.4. The PIC of claim 1 , further comprising:a housing to provide a fluid ...

Wavemeter

Method and apparatus for determining the wavelength of a light beam are provided. An input light beam is received, and light from the input light beam is distributed to multiple channels. At a first pair of interferometer cavities that has a first free spectral range, two of the multiple channels of light are received. The intensity of light reflected from the first pair of cavities is measured, and a first estimate of the wavelength or optical frequency of the input light beam is determined based on measurements of interference signals from the first pair of cavities and an initial estimate of the wavelength or optical frequency. At a second pair of cavities that has a second free spectral range smaller than the first free spectral range, another two of the multiple channels of light are received. The intensity of light from the second pair of cavities is measured, and a second estimate of the wavelength or optical frequency of the input light beam is determined based on the first estimate and measurements of interference signals from the second pair of cavities, in which the second estimate is more accurate than the first estimate.

SPECTROMETER

A spectrometer is disclosed. The spectrometer includes a fiber input, a collimator lens, a rotating shaft, a grating, a focal lens and a focal plane which have arranged in order. A broadband incident light of the fiber input becomes a first parallel beam through the collimator lens and separated by the grating into multiple parallel beams of different wavelengths and then focused by the focal lens to emit an output beams to an imaging position on the focal plane. The spectrometer can rotate the collimator lens and fiber input to change the imaging position on the focal plane. 1. A spectrometer , comprising:a fiber input, a collimator lens, a rotating shaft, a grating, a focal lens and a focal plane which have arranged in order, a broadband incident light of the fiber input becoming a first parallel beam through the collimator lens and being separated by the grating into multiple parallel beams of different wavelengths and then being focused by the focal lens to emit an output beams to an imaging position on the focal plane;wherein the spectrometer rotates the collimator lens and the fiber input to change the imaging position on the focal plane.2. The spectrometer of claim 1 , wherein when the collimator lens and the fiber input rotate claim 1 , a moving direction of the fiber input and a moving direction of the imaging position on the focal plane are opposite to each other.3. The spectrometer of claim 2 , wherein when the fiber input moves downward claim 2 , the imaging position on the focal plane moves upward.4. The spectrometer of claim 2 , wherein when the fiber input moves upward claim 2 , the imaging position on the focal plane moves downward.5. The spectrometer of claim 1 , wherein a rotation direction of the collimator lens and the fiber input is clockwise or counterclockwise.6. A spectrometer claim 1 , comprising:a fiber input, a relay lens, a collimator lens, a grating, a focal lens and a focal plane which have arranged in order, a broadband incident light ...

INTEGRATED POLARIZATION SPLITTER AND ROTATOR

An integrated polarization splitter and rotator (PSR) employs the TE0 and TE1 modes of propagating light, rather than the TE0 and TM0 modes used in conventional prior art PSR. The integrated PSR exhibits appreciably flatter wavelength response because it does not require a directional coupler to de-multiplex incoming polarizations. The PSR allows tuning of the TM0 loss to reduce polarization dependent loss (PDL). This integrated polarization splitter and rotator is applicable to all integrated platforms including Silicon-on-Insulator (SOI) and III-V semiconductor compound systems. The PSR may be very compact (12×2 μm), and provides low loss (<0.3 dB across the C-band) and ultra-broadband operation. The PSR also affords better control of polarization dependent losses. 120-. (canceled)21. An optical device , comprising: a first port for receiving an input optical signal comprising a TE0 mode with a first polarization and a TM0 mode with a second polarization;', 'a rotator configured to pass the TE0 mode, and configured to rotate the TE0 mode to a TE1 mode;', 'a splitter configured to split the TE0 mode into a first portion and a second portion, and to split the TE1 mode into a third portion and a fourth portion, and configured to mix the first portion and the third portion to produce a first output TE0 mode signal with the first polarization, and to mix the second portion and the fourth portion to produce a second TE0 output mode signal with the first polarization;', 'a tuner for tuning PDL of the first output TE0 mode signal and the second output TE0 mode signals;', 'a second port for outputting the first output TE0 mode signal; and', 'a third port for outputting the second output TE0 mode signal., 'a first integrated optical apparatus comprising22. The device according to claim 21 , wherein the TE1 mode exits the rotator appearing as two superposed TE0 modes claim 21 , which are out of phase by 180° claim 21 , forming the third portion and the fourth portion.23. The ...

OPTICAL FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters slacked at a fixed distance from each other, so that the upstream filter functions as a spatial filler for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample. 132-. (canceled)33. An optical assembly comprising: the two-dimensional array of bandpass optical filter segments including two or more one-dimensional arrays arranged side by side in a first direction, and', 'each of the two or more one-dimensional arrays being arranged side by side in a second, different direction and having a transmission center wavelength that is unique to the two-dimensional array., 'a filter comprising a two-dimensional array of bandpass optical filter segments,'}34. The optical assembly of claim 33 , further comprising: 'the first end being configured for contacting or inserting into a sample, thereby collecting signal light that emanates from the sample.', 'a relay lightpipe that extends between a first end and a second end,'}35. The optical assembly of claim 34 , wherein the relay lightpipe is further configured for unconstrained propagation of the signal light from the first end to the second end.36. The optical assembly of claim 34 , wherein the relay lightpipe comprises mirrored internal walls.37. The optical assembly of claim 34 , wherein the first end comprises a slanted optical surface.38. The optical assembly of claim 33 , further comprising:a different filter comprising a different two-dimensional array of bandpass optical filter segments.39. The optical assembly of claim 33 , further comprising:a grid that ...

OPTICAL SPECTRAL ANALYZER

An optical spectral analyzer for measuring an optical multi-channel signal by separating the multi-channel signal and measuring a plurality of single-channel signals simultaneously. The spectral analyzer can include a demultiplexer configured to receive the multi-channel signal. The multi-channel signal can be a multi-channel wavelength range. The demultiplexer can separate the multi-channel signal into the plurality of single-channel signals including a first single-channel signal and a second single-channel signal. The spectral analyzer can include a plurality of optical paths. The plurality of optical paths can include a plurality of respective detectors for measuring an optical power of the respective single-channel signals. The detectors can convert the optical power of the respective single-channel signals to corresponding electrical signals. In some examples, the spectral analyzer includes a controller configured to obtain the plurality of respective electrical signals simultaneously to correspondingly detect the optical power of the multi-channel signal across the multi-channel wavelength range. 1. An optical spectral analyzer for measuring an optical multi-channel signal by separating the multi-channel signal and measuring a plurality of single-channel signals simultaneously , the spectral analyzer comprising:a demultiplexer configured to receive the multi-channel signal having a multi-channel wavelength range and to separate the multi-channel signal into the plurality of single-channel signals including a first single-channel signal and a second single-channel signal: a first optical path including a first detector to measure an optical power of a plurality of individual wavelength segments of the first single-channel signal and convert the optical power of the first single-channel signal to a first electrical signal; and', 'a second optical path including a second detector to measure an optical power of a plurality of individual wavelength segments of the ...

ENDPOINT BOOSTER SYSTEMS AND METHODS FOR OPTICAL ENDPOINT DETECTION

An endpoint booster transports an optical signal from inside of a plasma etch chamber through a viewport to an optical cable outside of the plasma etch chamber. The optical signal is analyzed to determine an endpoint of a plasma process. The endpoint booster inhibits process byproducts from accumulating on the viewport during the plasma process, which increases the time between chamber cleanings. The reduction in chamber downtime for cleaning increases production throughput. 1. An endpoint booster having a front side and a back side , and comprising an aperture configured to channel an endpoint signal from a vacuum etch chamber to a fiber optic cable , the back side of the endpoint booster configured to be installed next to a vacuum side of a viewport window in the vacuum etch chamber and the front side of the endpoint booster configured to be exposed to an interior of the vacuum etch chamber.2. The endpoint booster of wherein the endpoint booster is configured to increase time between chamber cleanings due to byproduct deposit on the viewport window during semiconductor wafer etching in the vacuum etch chamber.3. The endpoint booster of wherein the aperture includes a first diameter and a second diameter.4. The endpoint booster of wherein the aperture further includes a plurality of clustered holes extending through the endpoint booster from the front side to the back side.5. The endpoint booster of wherein the plurality of clustered holes includes a first ring of holes around the first diameter.6. The endpoint booster of wherein the plurality of holes further includes a second ring of holes around the second diameter.7. The endpoint booster of wherein the plurality of clustered holes form a plurality of concentric circles about a center point of the endpoint booster.8. The endpoint booster of wherein each clustered hole has a diameter of approximately 1/16″ and the plurality of clustered holes is configured to form at least first and second concentric circles ...

Systems and methods for spectral processing improvements in spatial heterodyne spectroscopy

Raman spectroscopy data is collected using a Spatial Heterodyne Spectrometer and processed in order to reduce signal noise. The processing of the Raman spectroscopy data includes segmenting generating an interferogram from the Raman spectroscopy data, segmenting the interferogram, determining an estimate of power spectrum density, and averaging the estimates of power spectrum density for each segment to provide an output spectrum. The output spectrum has greatly reduced variance of the individual power measurements, and allows the length of segments to be optimized to balance noise reduction operations and the loss of frequency resolution.

SPECTROSCOPIC MAPPING SYSTEM AND METHOD

A system and method for spectroscopic mapping, with configurable spatial resolution, of an object include a fiber optic bundle having a plurality of optical fibers arranged in a first array at an input end with each of the plurality of optical fibers spaced one from another and arranged in at least one linear array at an output end. A first mask defining a plurality of apertures equal to or greater in number than the plurality of optical fibers is positioned between an object to be imaged and the input end of the fiber optic bundle. An imaging spectrometer is positioned to receive light from the output end of the fiber optic bundle and to generate spectra of the object. A sensor associated with the imaging spectrometer converts the spectra to electrical output signals for processing by an associated computer. 1. A system for spectroscopic mapping of an object , the system comprising:a fiber optic bundle having a plurality of optical fibers arranged in a first array at an input end and arranged in at least one linear array at an output end;a first mask defining a plurality of apertures, the plurality of apertures equal to or greater in number than the plurality of optical fibers, the first mask disposed between an object to be imaged and the input end of the fiber optic bundle;an imaging spectrometer positioned to receive light from the output end of the fiber optic bundle and to generate spectra of the object; anda sensor associated with the imaging spectrometer that converts the spectra to electrical output signals.2. The system of wherein each of the plurality of optical fibers includes a core surrounded by a cladding and wherein the plurality of optical fibers are spaced one from another at the input end of the fiber optic bundle such that the cladding of each fiber does not contact the cladding of any other fiber.3. The system of wherein the plurality of fibers is arranged at the output end such that the cladding of each fiber contacts the cladding of at least ...

BROADBAND OR MID-INFRARED FIBER LIGHT SOURCES

An optical system includes a tunable semiconductor light emitter that generates an input beam having a wavelength shorter than about 2.5 microns, an optical isolator coupled to the emitter and configured to block reflected light into the emitter, an optical amplifier receiving the input beam and outputting an intermediate beam, and optical fibers receiving the intermediate beam and forming an output beam. A subsystem includes lenses or mirrors that deliver the output beam to a sample. The subsystem may include an Optical Coherence Tomography (OCT) apparatus having a sample arm and a reference arm, the output beam having a temporal duration greater than approximately 30 picoseconds, a repetition rate between continuous wave and Megahertz or higher, and a time averaged intensity less than approximately 50 MW/cm. The system may also include a light detection system collecting any of the output beam that reflects or transmits from the sample. 1. An optical system comprising:one or more tunable semiconductor light emitters configured to generate an input beam, wherein at least a portion of the input beam comprises a wavelength shorter than about 2.5 microns;one or more optical isolators coupled to the one or more tunable semiconductor light emitters and configured to substantially prevent a reflected light into the one or more tunable semiconductor light emitters;one or more optical amplifiers configured to receive at least a part of the portion of the input beam and to output an intermediate beam from one of the one or more optical amplifiers;one or more optical fibers configured to receive at least a portion of the intermediate beam and to form an output beam with an output beam wavelength;{'sup': '2', 'a subsystem comprising one or more lenses or mirrors configured to receive a received portion of the output beam, the one of more lenses or mirrors configured to deliver a delivered portion of the output beam to a sample, wherein the subsystem comprises an Optical ...

SPECTRALLY-ENCODED ENDOSCOPY TECHNIQUES, APPARATUS AND METHODS

Exemplary apparatus for method for forming at least one spectral encoding endoscopy configuration. For example, it is possible to modify a spacer configuration and an lens optics configuration to have respective predetermined lengths, and also to modify a dispersive optics configuration to have a further predetermined length. Further, the modified spacer and modified lens optics configurations can be attached to one another to form a combined spacer-lens optics configuration. The modified dispersive optics configuration can be attached to a substrate to form to form a grating substrate configuration. Additionally, the combined spacer-lens optics configuration can be connected to an optical fiber, and the modified attached dispersed optics configuration can be connected to the modified attached lens optics configuration to form the spectral encoding endoscopy configuration(s) which can extends along a particular axis. The dispersive optics configuration can be modified to be at a predetermined angle with respect to the particular axis. 126-. (canceled)27. A spectral encoding endoscopy apparatus , comprising:an lens optics configuration;a spacer configuration, wherein respective predetermined lengths of the spacer configuration and the lens optics configuration are changed by altering respective physical aspects thereof; anda dispersive optics configuration being modifiable to have a further predetermined length,wherein the changed spacer and changed lens optics configurations are attached to one another to form a combined spacer-lens optics configuration,wherein the modified dispersive optics configuration is attached to a substrate to form a grating substrate configuration; and the combined spacer-lens optics configuration is connected to an optical fiber, and the modified attached dispersed optics configuration is connected to the changed attached lens optics configuration to form the at least one spectral encoding endoscopy apparatus which extends along a ...

OPTICAL MEASUREMENT SYSTEM AND METHOD OF MEASURING LIGHT EMITTED FROM MICRO DEVICE

An optical measurement system is provided. The optical measurement system includes an optical fiber and a photo detecting component. The optical fiber has a first end, a second end opposite to the first end, and an inner cavity recessed from the first end and is configured to accommodate a micro device. The photo detecting component is connected to the second end of the optical fiber and is configured to receive light propagating from the first end of the optical fiber. 1. An optical measurement system , comprising:an optical fiber having a first end, a second end opposite to the first end, and an inner cavity recessed from the first end and configured to accommodate a micro device; anda photo detecting component connected to the second end of the optical fiber and configured to receive light propagating from the first end of the optical fiber.2. The optical measurement system of claim 1 , wherein the photo detecting component comprises a photoelectric transducer.3. The optical measurement system of claim 1 , wherein the photo detecting component comprises an optical spectrometer.4. The optical measurement system of claim 1 , further comprising an alignment component connected to the optical fiber at a position between the first end and the second end and configured to maximize a power of the light received by the photo detecting component.5. The optical measurement system of claim 1 , further comprising a transparent layer in the inner cavity claim 1 , wherein a refractive index of the transparent layer is greater than 1.6. The optical measurement system of claim 1 , wherein a lateral length of the optical fiber is greater than or equal to a lateral length of the inner cavity.7. The optical measurement system of claim 1 , wherein the optical fiber comprises:a core portion; anda cladding layer wrapping the core portion and configured to confine the light to propagate within the core portion.8. The optical measurement system of claim 7 , wherein a refractive index of ...

RECONFIGURABLE OPTICAL FIBER SPECTROMETER IN A LIGHTING DEVICE

A spectrometer-equipped lighting device detects substances in an environment around the device. A fiber detector is optically coupled to receive light from a light source. The fiber detector has a bare area from which emanates an evanescent wave of light surrounding an exterior of the fiber detector to interact with the environment in which the fiber detector is exposed. The spectrometer, optically coupled to an opposite end of the fiber detector, detects the light output and in response, generates signals representative of the spectral power distribution of the light of the evanescent wave that has interacted with the surrounding environment. A controller analyzes the spectrometer generated signals and initiates action based on the analysis of the generated signals or outputs a report indicating an environmental condition detected by the spectrometer-equipped device. 1. A system comprising: a spectrometer light source integrated within the first lighting device; and', 'a first processor coupled to output control signals to the spectrometer light source causing the spectrometer light source to output light in a predetermined direction; and, 'a first lighting device comprising a light source integrated within the second lighting device configured to emit general illumination light into an environment in space to be illuminated by the second lighting device;', 'a spectrometer integrated within the second lighting device; and', 'a second processor coupled to the spectrometer to process spectral power distribution measurements from the spectrometer to selectively detect a plurality of different environmental conditions in the environment in which the second lighting device is located,', 'wherein the spectrometer of the second lighting device is aligned to receive a portion of the light output by the spectrometer light source of the first lighting device; and, 'a second lighting device, comprising a first end optically coupled to the spectrometer light source of the ...

OPTICAL SYSTEMS AND METHODS FOR SAMPLE SEPARATION

A system for separating biological molecules includes a plurality of capillaries (), a capillary mount (), a plurality of optical fibers (), a fiber mount (), an optical detector (), and a motion stage (). The plurality of capillaries () are configured to separate biological molecules in a sample. Each capillary () comprising a detection portion () configured to pass electromagnetic radiation into the capillary (). The plurality of capillaries () are coupled to the capillary mount () such that the detection portions () are fixedly located relative to one another. Each optical fiber () includes a receiving end to receive emissions. The optical fibers () are coupled to the fiber mount () such that the receiving ends of the optical fibers are fixedly located relative to one another. The optical detector () is configured to produce an alignment signal. The motion stage () is configured to align the receiving ends of the optical fibers () to the detection portions () based on values of the alignment signal. 1. A system for separating biological molecules , the system comprising:a plurality of capillaries configured to separate biological molecules in a sample, each capillary comprising a detection portion configured to pass electromagnetic radiation into the capillary;a capillary mount, the plurality of capillaries coupled to the capillary mount such that the detection portions are fixedly located relative to one another;a plurality of optical fibers corresponding to the plurality of capillaries, each optical fiber comprising a receiving end configured to receive emissions from a respective one of the detection portions;a fiber mount, the optical fibers being coupled to the fiber mount such that the receiving ends of the optical fibers are fixedly located relative to one another;an emission optical system configured to direct emissions from the detection portions into the receiving ends of the optical fibers;an optical detector configured to produce an alignment signal ...

METHODS AND APPARATUS FOR IMAGING WITH MULTIMODE OPTICAL FIBERS

A multimode waveguide illuminator and imager relies on a wave front shaping system that acts to compensate for modal scrambling and light dispersion by the multimode waveguide. A first step consists of calibrating the multimode waveguide and a second step consists in projecting a specific pattern on the waveguide proximal end in order to produce the desire light pattern at its distal end. The illumination pattern can be scanned or changed dynamically only by changing the phase pattern projected at the proximal end of the waveguide. The third and last step consists in collecting the optical information, generated by the sample, through the same waveguide in order to form an image. Known free space microscopy technique can be adapted to endoscopy with multimode waveguide, such as, but not limited to, fluorescence imaging or Raman spectroscopy or imaging, D linear scattering imaging or two-photon imaging. Super-resolution, i.e., resolution below the diffraction limit, is achieved for example but not limited to, using the STimulated Emission Depletion microscopy (STED) technique or the Structured Illumination Microscopy (SIM) technique or a stochastic illumination based method (PALM, STORM) in combination with the multimode waveguide imaging method. 1. A method for deterministic light transmission through a multimode waveguide comprising the steps of:providing the multimode waveguide; coupling in light at an input side of the multimode waveguide;', 'analyzing light coupled in at the input side of the multimode waveguide, at an output side of the multimode waveguide,, 'calibrating the multimode waveguide, whereby the calibrating comprisesthe method for deterministic light transmission further comprisingconditioning the output of the multimode waveguide by controlling a spatial light modulator to choose an appropriate light field at the proximal tip of the multimode waveguide.2. The method of claim 1 , wherein the output side of the multimode waveguide is an opposite end ...

SYSTEM AND METHOD FOR TISSUE VISUALIZATION

This invention is regarding a set of stand-alone or combined-use surgical tools and associated systems and methods for performing surgical procedures such as identifying hidden tissue anatomy and dissecting the periphery tissues. In particular, this invention describes tools and the associated systems and methods for visualizing hidden important structures such as arteries, veins, ureters, bile duct, bowel, nodules, tumors, and performing tissue cutting using energy-based instrument. The tools are to be operated stand-alone or by attaching to existing instruments used for minimally invasive surgery. 1. A device for visualizing an interior of a tissue having a planar surface , comprising:(a) a light source;(b) a source optical fiber in optical communication with said light source, said source optical fiber having a source terminus remote from said light source;(c) a detector optical fiber, said detector optical fiber having a detector terminus; wherein said source terminus and said detector terminus are mounted in a spaced apart configuration proximate to said terminus of said probe,', 'wherein said source terminus and said detector terminus are configured to simultaneously contact the planar surface of said tissue which said probe is placed into contact with said planar surface of said tissue;', 'wherein said detector terminus is positionable to receive diffuse light from said tissue when said source light source is activated;, '(d) a probe having said source terminus and said detector terminus mounted thereon,'}(e) a spectrometer in optical communication with said detector optical fiber and said detector terminus, said spectrometer at least for calculating a frequency spectrum said diffuse light received by said detector terminus; and(f) a display device in electrical communication with said spectrometer, said display device at least for displaying in real time said calculated frequency spectrum from said diffuse light.2. The device for visualizing an interior of a ...

Multiplexed Sensor Network Using Swept Source Raman Spectroscopy

Swept-source Raman spectroscopy uses a tunable laser and a fixed-wavelength detector instead of a spectrometer or interferometer to perform Raman spectroscopy with the throughput advantage of Fourier transform Raman spectroscopy without bulky optics or moving mirrors. Although the tunable laser can be larger and more costly than a fixed wavelength diode laser used in other Raman systems, it is possible to split and switch the laser light to multiple ports simultaneously and/or sequentially. Each site can be monitored by its own fixed-wavelength detector. This architecture can be scaled by cascading fiber switches and/or couplers between the tunable laser and measurement sites. By multiplexing measurements at different sites, it is possible to monitor many sites at once. Moreover, each site can be meters to kilometers from the tunable laser. This makes it possible to perform swept-source Raman spectroscopy at many points across a continuous flow manufacturing environment with a single laser.

SPECTRALLY ENCODED PROBES

A novel endoscope, which can be a spectrally encoded endoscope (SEE) probe having forward-view, side-view, or a combination of forward and side views is provided herein. The SEE probe includes a light guiding component, a light focusing component, and a grating component. The probe is configured to forward a light such as a spectrally dispersed light from the grating component to a sample with no intermediate reflections between light guiding component and the grating component. A triangular grating, such as a staircase grating or an overhang grating may be used as the grating component. 1. A probe comprising:a light guiding component;a light focusing component; anda grating component,wherein the probe is configured for guiding a light from the light guiding component, through the light focusing component and to the grating component in the direction of the probe optical axis, and then forwarding a spectrally dispersed light from the grating component towards a sample with no intermediate reflections between the light guiding component and the grating component.2. The probe of claim 1 , wherein the grating component comprises a triangular grating.3. The probe of claim 1 , wherein the probe is a spectrally encoded endoscopy (SEE) probe.5. The probe of claim 1 , wherein a light diffracted from the grating component having a wavelength of between 400 nm and 1000 nm has substantially no 0order component.6. The probe of claim 1 , wherein the grating component comprises a first refractive surface substantially perpendicular to the direction of the probe optical axis.7. The probe of claim 6 , wherein the grating component comprises a second refractive surface substantially parallel to the direction of the probe optical axis.8. The probe of claim 1 , wherein the grating component is transmissive grating configured to enhance one or more of the transmitted orders of diffracted light.9. The probe of claim 8 , wherein the grating component is configured to enhance the 4 claim ...

METHOD OF CALIBRATING SPECTRUM SENSORS IN A MANUFACTURING ENVIRONMENT AND AN APPARATUS FOR EFFECTING THE SAME

Spectrum sensors can be continuously calibrated in a manufacturing environment employing a continuously moving platform that carries the spectrum sensors in combination with spatially separated light spectra illuminating a region of the platform. A plurality of spectrum sensors, each including multiple sensor pixels, can be placed on the platform. The spatially separated light spectra can be illuminated over an area of the platform. The plurality of spectrum sensors can be moved with the platform through a region of the spatially separated light spectrum. Each sensor pixel for each of the plurality of spectrum sensors can be calibrated based on response of each spectral channel during passage through the spatially separated light spectra. The entire spectra from a light source can be employed simultaneously to calibrate multiple spectrum sensors in the manufacturing environment. 1. A method of simultaneously measuring spectral responses of a plurality of optical sensors , comprising:placing a plurality of optical sensors on a platform, each of the plurality of optical sensors including a plurality of sensor pixels;providing spatially separated light spectra over an illuminated region of the platform, wherein different areas of the illuminated region are illuminated with different monochromatic lights having different peak wavelengths;moving the plurality of optical sensors with the platform through the illuminated region; andmeasuring spectral responses of at least one sensor pixel within each of the plurality of optical sensors during transit through the illuminated region.2. The method of claim 1 , whereinthe spatially separated light spectra include a continuous wavelength range segment from 250 nm to 1,100 nm.3. The method of claim 1 , further comprising intermittently stopping movement of the plurality of optical sensors during transit through the illumination region claim 1 , wherein the spectral responses of the sensor pixels is performed while the plurality ...

Analyte system and method for determining hemoglobin parameters in whole blood

A light-emitting module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The light-emitting module includes an LED light source capable of emitting light wherein the light is directed thereby defining an optical path and a plurality of optical components. The plurality of optical components includes a collimating lens, a first optical diffuser, a circular polarizer, and a focusing lens wherein the plurality of optical components is disposed within the optical path of the light from the LED light source 1. A light-emitting module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters , the light-emitting module comprising:an LED light source capable of emitting light wherein the light is directed thereby defining an optical path; and a collimating lens;', 'a first optical diffuser;', 'a circular polarizer; and', 'a focusing lens wherein the plurality of optical components is disposed within the optical path of the light from the LED light source., 'a plurality of optical components comprising2. The light-emitting module of further comprising a protective window disposed downstream of the plurality of optical components.3. The light-emitting module of further includes a light-emitting module substrate that contains an electrical circuit and a light-emitting optics assembly.4. The light-emitting module of wherein the light-emitting optics assembly has an optics assembly housing with an optics assembly end wherein the optics assembly housing supports the plurality of optical components.5. The light-emitting module of wherein the circular polarizer is downstream from the first optical diffuser.6. The light-emitting module of wherein the focusing lens is downstream from the circular polarizer. The present invention relates generally to spectroscopic systems and methods for the identification and characterization of hemoglobin parameters in blood.An ultraviolet-visible ...

Analyte system and method for determining hemoglobin parameters in whole blood

A calibrating-light module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The calibrating-light module includes a calibrating module housing, a light beam receiving portion connected to a first end of the calibrating module housing, a calibrating light portion connected to a side of the calibrating module housing wherein the side is transverse to the first end, and an optic fiber portion connected to a second end of the calibrating module housing wherein the calibrating module housing, the light beam receiving portion and the optic fiber portion are aligned with an optical path and the calibrating light portion is spaced from and transverse to the optical path. 1. A calibrating-light module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters , the calibrating-light module comprising:a calibrating module housing;a light beam receiving portion connected to a first end of the calibrating module housing;a calibrating light portion connected to a side of the calibrating module housing wherein the side is transverse to the first end; andan optic fiber portion connected to a second end of the calibrating module housing wherein the calibrating module housing, the light beam receiving portion and the optic fiber portion are aligned with an optical path and the calibrating light portion is spaced from and transverse to the optical path.2. The calibrating-light module of wherein the calibrating module housing includes a first tubular conduit extending from the first end to the second end.3. The calibrating-light module of wherein the first end has a light beam input opening and the second end has a light beam exit opening.4. The calibrating-light module of wherein the calibrating module housing has a second tubular conduit that is transverse to and intersects with the first tubular conduit.5. The calibrating-light module of wherein the calibrating light portion has a ...

Analyte system and method for determining hemoglobin parameters in whole blood

An optical component group for use in a spectrometer module of a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The optical component group includes a light dispersing element and an achromatic lens assembly disposed between the light dispersing element and a light entrance port of the spectrometer module where the achromatic lens assembly is thermo-compensating permitting thermal expansion and contraction of the achromatic lens assembly in a linear direction where the linear directions is also transverse to a light beam from the light entrance port through the achromatic lens assembly and to the light dispersing element and back through the achromatic lens assembly. 1. An optical component group for use in a spectrometer module of a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters , the optical component group comprising:a light dispersing element; andan achromatic lens assembly disposed between the light dispersing element and a light entrance port of the spectrometer module and wherein the achromatic lens assembly is thermo-compensating permitting thermal expansion and contraction of the achromatic lens assembly in a linear direction wherein the linear directions is also transverse to a light beam from the light entrance port through the achromatic lens assembly and to the light dispersing element and back through the achromatic lens assembly.2. The group of wherein the achromatic lens assembly includes a lens mount having a fixed mount end fixedly connected to one of a spectrometer base or a baseplate and an unfixed mount end that permits thermal expansion and contraction of the lens mount in a linear direction toward or away from the fixed mount end.3. The group of wherein the achromatic lens assembly includes an achromatic lens fixedly attached to the lens mount.4. The group of wherein the achromatic lens is a spherical achromatic lens.5. The group of wherein the unfixed ...

APPARATUS FOR OPTICAL APPLICATIONS, SPECTROMETER SYSTEM AND METHOD FOR PRODUCING AN APPARATUS FOR OPTICAL APPLICATIONS

The present invention relates to an apparatus for optical applications, a spectrometer system and method for producing an apparatus for optical applications, and in particular to an apparatus comprising an optical waveguide having a first refractive index along a light propagation axis interrupted by a plurality of scattering portions having a second refractive index. Each scattering portion has a long axis substantially perpendicular to the light propagation axis as well as a short axis substantially perpendicular to the light propagation axis and the long axis. A receiver unit or a transmitter unit is arranged on a side of the optical waveguide, the long axis being substantially perpendicular, i.e. normal to the plane of this side on which the receiver unit or transmitter unit is arranged. Accordingly, simplification and miniaturization of an optical apparatus can be realized. 1. An apparatus for optical applications , comprisingan optical waveguide configured to guide light along a light propagation axis and having a first refractive index along the light propagation axis interrupted by a plurality of portions having a second refractive index, wherein each portion has a long axis substantially perpendicular to the light propagation axis as well as a short axis substantially perpendicular to the light propagation axis and the long axis; anda receiver unit arranged on a side of the optical waveguide,wherein the receiver unit is arranged so as to receive light scattered from the plurality of portions in a scattering direction lying in a main scattering plane defined by the long axis and the light propagation axis.2. An apparatus for optical applications , comprisingan optical waveguide configured to guide light along a light propagation axis and having a first refractive index along the light propagation axis interrupted by a plurality of portions having a second refractive index, wherein each portion has a long axis substantially perpendicular to the light ...

System for distributing and controlling color reproduction at multiple sites

In the color imaging system, multiple rendering devices are provided at different nodes along a network. Each rendering device has a color measurement instrument for calibrating the color presented by the rendering device. A rendering device may represent a color display in which a member surrounds the outer periphery of the screen of the display and a color measuring instrument is coupled to the first member. The color measuring instrument includes a sensor spaced from the screen at an angle with respect to the screen for receiving light from an area of the screen. A rendering device may be a printer in which the measuring of color samples on a sheet rendered by the printer is provided by a sensor coupled to a transport mechanism which moves the sensor and sheet relative to each other, where the sensor provides light from the sample to a spectrograph. The color measuring instruments provide for non-contact measurements of color samples either displayed on a color display, or printed on a sheet, and are self-calibrating by the use of calibration references in the instrument.

FIBER-OPTIC MEASUREMENT SYSTEM AND METHODS BASED ON ULTRA-SHORT CAVITY LENGTH FABRY-PEROT SENSORS AND LOW RESOLUTION SPECTRUM ANALYSIS

An optical system having an optical sensor with an ultra-short FP cavity, and a low-resolution optical interrogation system coupled to the optical sensor and operational to send light signals and receive light signals to and from the optical sensor is disclosed. The optical system may operate in a wavelength range including the visible and near-infrared range. Methods of interrogating optical sensors are provided, as are numerous other aspects. 1. An optical system , comprising:an optical sensor having an ultra-short FP cavity; andan optical interrogation system coupled to the optical sensor and operational to send light signals to the optical sensor and receive light signals from the optical sensor within a wavelength range including the visible and near-infrared range.2. The optical system of claim 1 , wherein the optical interrogation system comprises a spectrally-sensitive detection system and broad-band light source.3. The optical system of claim 2 , wherein the spectrally-sensitive detection system has a spectral resolution of 0.5 nm or worse.4. The optical system of claim 2 , wherein the spectrally-sensitive detection system has a spectral resolution of between 0.5 nm and 10 nm.5. The optical system of claim 1 , wherein the wavelength range comprises at least between 400 nm and 1100 nm.6. The optical system of claim 1 , comprising:a color detector adapted to receive the light signals and simultaneously detect light-intensity at different wavelengths.7. The optical system of claim 1 , comprising:multimode lead-in fibers coupled to the optical sensor.8. The optical system of claim 1 , comprising:a Fabry-Perot optical fiber sensor having an initial cavity length shorter than 2.5 μm.9. The optical system of claim 1 , comprising:a Fabry-Perot optical fiber sensor having an initial cavity length shorter than 1.5 μm.10. The optical system of claim 1 , comprising:a Fabry-Perot optical fiber sensor having an initial cavity length shorter than 1 μm.11. The optical ...

Photonic Optical Sensor and Method of Use Thereof

The system may include a photonic optical sensor including a photonic crystal and an incident light source arranged so as to project light onto the photonic optical sensor, and such that the photonic optical sensor returns a portion of the light projected onto the photonic optical sensor as returned light. The system may further include a detector positioned with respect to the photonic optical sensor so as to detect the returned light. The detector produces a data output based on the returned light. Additionally, a processing unit receives and processes the data output. 1. A system comprising:a photonic optical sensor including a photonic crystal;an incident light source arranged to project light onto the photonic optical sensor such that the photonic optical sensor returns a portion of the light projected thereon as returned light;a detector positioned with respect to the photonic optical sensor so as to detect the returned light, and the detector producing a data output based on the returned light; anda processing unit that processes the data output.2. The system of claim 1 , wherein the photonic optical sensor is formed on or in a workpiece for the detection of at least one of a thermal property or a mechanical property of the workpiece.3. The system of claim 2 , further comprising:a reference photonic optical sensor formed on the workpiece at a location with a known reference mechanical property.4. The system of claim 1 , wherein the photonic optical sensor includes a 1-D photonic crystal.5. The system of claim 4 , wherein the photonic crystal has a minimum feature area of 2500 nm.6. The system of claim 1 , wherein the photonic optical sensor includes a 2-D photonic crystal.7. The system of claim 1 , wherein the photonic crystal includes a sub-micron optical element pattern.8. The system of claim 7 , wherein the sub-micron optical element pattern includes a lattice having a minimum of 1 element.9. The system of claim 7 , wherein the sub-micron optical element ...

Novel technique for the detection of trace gases using Intracavity Fiber Laser Absorption Spectroscopy (IFLAS)

A gas detection system uses intracavity fiber laser absorption spectroscopy. The fiber laser is stabilized by a saturable absorber, and the sensitivity is enhanced by multiple circulations of amplified spontaneous emission light under threshold conditions, and multi-longitudinal mode oscillation of the laser.

High-resolution integrated-optics-based spectrometer

A high-resolution single-chip spectrometer is disclosed. Embodiments of the present invention are analogous to Fourier-transform spectrometers; however, embodiments of the present invention have no moving parts. An illustrative embodiment is a spectrometer having a nested plurality of Mach-Zehnder interferometers (MZIs), where all MZIs share at least one surface-waveguide section in each of its sample and reference arms. The light signals in the sample and reference arms are tapped at a series of discrete locations along their length via electro-optically-controlled directional couplers, which are separated by uniform-length waveguide portions in each arm, but where the uniform lengths are different in the sample and reference arms providing a different path-length difference for the arms of each MZI. The tapped light from the sample and reference arms is recombined at a low-loss beam combiner to generate a distribution of optical power as a function of time-delay difference in the arms.

MINIATURIZED FOURIER-TRANSFORM RAMAN SPECTROMETER SYSTEMS AND METHODS

State-of-the-art portable Raman spectrometers use discrete free-space optical components that must be aligned well and that don't tolerate vibrations well. Conversely, the inventive spectrometers are made with monolithic photonic integration to fabricate some or all optical components on one or more planar substrates. Photonic integration enables dense integration of components, eliminates manual alignment and individual component assembly, and yields superior mechanical stability and resistance to shock or vibration. These features make inventive spectrometers especially suitable for use in high-performance portable or wearable sensors. They also yield significant performance advantages, including a large (e.g., 10,000-fold) increase in Raman scattering efficiency resulting from on-chip interaction of the tightly localized optical mode and the analyte and a large enhancement in spectral resolution and sensitivity resulting from the integration of an on-chip Fourier-transform spectrometer. 1. A system , comprising:a light source to emit a probe beam;a probe waveguide, in optical communication with the light source, to receive the probe beam and cause at least a portion of the probe beam to interact with a sample, the interaction between the probe beam and the sample generating a Raman signal;a filter, in optical communication with the sample, to transmit the Raman signal and block the probe beam;a Fourier transform spectrometer, in optical communication with the filter, to generate a sequence of interference patterns representing a spectrum of the Raman signal; anda single-element detector, in optical communication with the Fourier transform spectrometer, to detect each of the interference patterns in the sequence of interference patterns generated by the Fourier transform spectrometer.2. The system of claim 1 , wherein the probe waveguide comprises an optical fiber.3. The system of claim 1 , wherein the probe waveguide is integrated in or on a substrate and ...

PHOTON COUNTING AND SPECTROSCOPY

A measurement system includes an optical source (e.g., laser) to irradiate a sample (e.g., a cell); a solid-state photon detector (SSPD) to receive resultant light from the sample; and a photon counter to count photons received by the SSPD. The photon counter can include a differentiator to provide a differentiated photon signal and a crossing detector configured to count photons based on a number of times the differentiated photon signal crosses a predetermined threshold level. In some examples, a pulse detector can provide a pulse-width signal from the SSPD output photon signal, and a pulse counter can count based on both a number of pulses and widths of the pulses. The SSPD can include a silicon photomultiplier (SiPM) array or a solid-state photomultiplier. Some examples use the measurement system to measure samples in fluids, e.g., in flow cytometers or multi-well plates. 1. A measurement system , comprising:an optical source configured to irradiate a sample;a semiconductor photomultiplier (SPM) configured to receive resultant light from the sample and, in response, provide a photon signal; and a differentiator configured to provide a differentiated photon signal based at least in part on the photon signal; and', 'a crossing detector configured to provide the count signal representing a number of times the differentiated photon signal crosses a predetermined threshold level., 'a photon counter configured to receive the photon signal and, in response, provide a count signal, wherein the photon counter comprises2. The system according to claim 1 , wherein:the optical source comprises a laser or other source configured to emit substantially monochromatic light towards the sample; andthe system comprises a monochromator configured to successively provide a plurality of wavelength bands of the resultant light to the SPM.3. The system according to or claim 1 , wherein:the system comprises illumination optics configured to substantially focus the light onto the sample; ...

SYSTEM AND METHOD FOR NON-INVASIVE MEASUREMENT OF ANALYTES IN VIVO

A system for non-invasively interrogating an in vivo sample for measurement of analytes comprises a pulse sensor coupled to the in vivo sample for detect a blood pulse of the sample and for generating a corresponding pulse signal, a laser generator for generating a laser radiation having a wavelength, power and diameter, the laser radiation being directed toward the sample to elicit Raman signals, a laser controller adapted to activate the laser generator, a spectrometer situated to receive the Raman signals and to generate analyte spectral data; and a computing device coupled to the pulse sensor, laser controller and spectrometer which is adapted to correlate the spectral data with the pulse signal based on timing data received from the laser controller in order to isolate spectral components from analytes within the blood of the sample from spectral components from analytes arising from non-blood components of the sample. 1. A probe for non-invasively interrogating an in vivo sample for measurement of analytes comprising:a laser generator for outputting a laser radiation having a wavelength, power and diameter;a scanning mirror positioned to receive the laser radiation; anda mechanical driver coupled to the scanning mirror and adapted to move the scanning mirror such that the scanning mirror moves a focal spot of the laser radiation over an area of the sample over time, thus providing a reduction in average radiation intensity at any given point on or in the sample; andcollection optics, positioned to track the focal point of the laser on the sample, and to receive Raman signals elicited by impact of the laser radiation at the focal spot on the sample, and emanating therefrom, via the same scanning mirror;wherein the Raman signals that emanate from the sample contain data from which the analytes in the same can be determined.2. The probe of wherein the mechanical driver comprises a motor and a shaft claim 1 , the shaft is coupled to and adapted to cause the ...

SYSTEM AND METHOD FOR IMPROVED LIGHT DELIVERY TO AND FROM SUBJECTS

An optical probe comprising a light source providing a light that is directed along a first axis; a diffusive element positioned proximate to the light source to receive the light and to diffuse the light as it exits the diffusive element; and a directional optical element directing the light exiting the diffusive element along at least one of the first axis and a second axis generally perpendicular to the first axis to project the light out of the optical probe and onto a subject. 1. An optical device , the optical device comprising:a light source providing a light that is directed along a first axis;a diffusive element positioned proximate to the light source to receive the light and to diffuse the light as it exits the diffusive element; anda directional optical element directing the light exiting the diffusive element along at least one of the first axis and a second axis generally perpendicular to the first axis, to project the light out of the optical probe and onto a subject.2. The optical device of claim 1 , wherein the light source is a laser.3. The optical device of claim 1 , wherein the diffusive element is one of a surface diffusive element claim 1 , a diffractive diffusive element claim 1 , a refractive diffusive element claim 1 , a holographic diffusive element and a phase diffusive element.4. The optical device of claim 1 , wherein the optical probe is a spectroscopy device.5. The optical device of claim 4 , wherein the optical probe is a near-infrared spectroscopy device.6. The optical device of claim 1 , wherein the light source uses a plurality of fiber optic cables to transmit light.7. The optical device of claim 1 , wherein the directional optical element is a prism.8. A method of increasing light throughput in an optical probe claim 1 , the method comprising:transmitting a light along a first axis from a light source;receiving the light through a diffusive element, the diffusive element positioned proximate to the light source to diffuse the ...

WEARABLE DEVICE COUPLED TO TIME-OF-FLIGHT IMAGING SYSTEM

An optical system measures one or more physiological parameters with a wearable device that includes a light emitting diode (LED) source including a driver and a plurality of semiconductor sources that generate an output optical light. One or more lenses deliver a lens output light to tissue of a user. A detection system receives at least a portion of the lens output light reflected from the tissue and generates an output signal having a signal-to-noise ratio. The detection system comprises a plurality of spatially separated detectors and an analog to digital converter. The detection system increases the signal-to-noised ratio by comparing a first signal with the LEDs off to a second signal with the LEDs on. An imaging system including a Bragg reflector is pulsed and has a near infrared wavelength. A beam splitter splits the light into a sample arm and a reference arm to measure time-of-flight. 1. An optical system , comprising:a wearable device for measuring one or more physiological parameters, the wearable device adapted to be placed on a wrist or an ear of a user, including a light source comprising a driver and a plurality of semiconductor sources that are light emitting diodes, the light emitting diodes configured to generate an output optical light having one or more optical wavelengths;the wearable device comprising one or more lenses configured to receive at least a portion of the output optical light and to deliver a lens output light to tissue;the wearable device further comprising a detection system configured to receive at least a portion of the lens output light reflected from the tissue and to generate an output signal having a signal-to-noise ratio, wherein the detection system is configured to be synchronized to the light source;wherein the detection system comprises a plurality of detectors that are spatially separated from each other, and wherein at least one analog to digital converter is coupled to at least one of the spatially separated ...

SPECTROSCOPIC SENSOR AND METHOD FOR MANUFACTURING THE SAME

The present invention relates to a spectroscopic sensor and a method for manufacturing the same. A spectroscopic sensor according to one embodiment of the present invention includes a fiber layer including a plurality of flexible fibers and a surface plasmon active layer formed on the surface of the fibers. The surface plasmon active layer is densely formed and enables highly reliable spectroscopy. The fiber layer is flexible and facilitates the collection of a target sample. 1. A spectroscopic sensor comprisinga fiber layer comprising a plurality of flexible fibers anda surface plasmon active layer formed on the surface of the fibers.2. The spectroscopic sensor according to claim 1 , wherein the fibers form a non-woven fabric structure claim 1 , a woven fabric structure claim 1 , a bundle structure or a combination thereof.3. The spectroscopic sensor according to claim 1 , wherein the surface plasmon active layer comprises conductive nanoparticles and a polymer binder immobilizing the conductive nanoparticles on the surface of the fibers.4. The spectroscopic sensor according to claim 3 , wherein the conductive nanoparticles form an aggregate structure.5. The spectroscopic sensor according to claim 3 , wherein the conductive nanoparticles are selected from nanospheres claim 3 , nanotubes claim 3 , nanocolumns claim 3 , nanorods claim 3 , nanopores claim 3 , nanowires claim 3 , and combinations thereof.6. The spectroscopic sensor according to claim 3 , wherein the conductive nanoparticles comprise carbon particles claim 3 , graphite particles claim 3 , metalloid particles claim 3 , metal particles claim 3 , conductive metalloid oxide particles claim 3 , conductive metal oxide particles claim 3 , conductive metalloid nitride particles claim 3 , conductive metal nitride particles claim 3 , core-shell structured particles in which carbon particles claim 3 , graphite particles claim 3 , metalloid particles claim 3 , metal particles claim 3 , conductive metalloid oxide ...

Spectroscopic measuring apparatus and method, and method for fabricating semiconductor device using the measuring method

A spectroscopic measuring apparatus and method are provided. The apparatus includes a first light source, object, microlens, and imaging lenses, an optical fiber, a spectrometer and a position controller. The object lens to allows light from the first light source to be incident on a stage configured to support a measurement object. The microlens is disposed between the object lens and the stage. The imaging lens images light reflected from the measurement object. The optical fiber has an input terminal disposed on a first image plane of the imaging lens. The spectrometer is disposed at an output terminal of the optical fiber. The position controller controls positions of the object lens, the microlens, and the optical fiber, and adjusts the position of the object lens so that a focus of the object lens is positioned at a virtual image position of a virtual image generated by the microlens.

OPTICAL MEASUREMENTS WITH DYNAMIC RANGE AND HIGH SPEED

A system for providing optical measurements and detection in optical spectrum analyzers (OSAs) with high dynamic range and high speed is disclosed. The system may include a slit to allow inward passage of an optical beam. The system may also include an optical portion to receive the optical beam. In some examples, the optical portion may include at least one optical splitter to split the optical beam into at least two optical paths. The system may also include an electrical portion to receive the optical beams split into the at least two optical paths. In some examples, the electrical portion may include at least one photodetector to receive each of the split optical beam. The electrical portion may also include at least one amplifier communicatively coupled to each of the at least one photodetector to amplify the split optical beam. The electrical portion may further include at least one analog-to-digital converter (ADC) communicatively coupled to each of the at least one amplifier to convert the split optical beams into digital signals. 120-. (canceled)21. A system , comprising:at least one optical splitter to split an optical beam into at least two optical paths;at least one photodetector to receive each of the split optical beam;at least one amplifier communicatively coupled to each of the at least one photodetector to amplify the split optical beam;at least one analog-to-digital converter (ADC) communicatively coupled to each of the at least one amplifier to convert the split optical beams into digital signals; anda processor to combine the digital signals using a stitching technique.22. The system of claim 21 , wherein the processor comprises:generating an optical spectrum based on the combined digital signals, the optical spectrum representing an input optical signal.23. The system of claim 22 , wherein the stitching technique comprises:selecting values, at each wavelength point, from a highest gain stage of the digital signals that is not above a ...

NOISE REDUCTION APPARATUS AND DETECTION APPARATUS INCLUDING THE SAME

A noise reduction apparatus includes a first delaying/combining unit configured to output first and second pulse light beams, and a second delaying/combining unit configured to branch the first pulse light beam into two pulse light beams to output third and fourth pulse light beams and branch the second pulse light beam into two pulse light beams to output fifth and sixth pulse light beams. 1. A noise reduction apparatus comprising:a first delaying/combining unit configured to branch a pulse light beam of a first period into two pulse light beams, provide a first delay time between the two branched pulse light beams, and combine the two branched pulse light beams, to output a first pulse light beam polarized in a first direction and a second pulse light beam polarized in a direction orthogonal to the first direction and delayed by the first delay time with respect to the first pulse light beam;a second delaying/combining unit configured to branch the first pulse light beam into two pulse light beams, provide a second delay time between the two branched pulse light beams, combine the two branched pulse light beams, to output a third pulse light beam polarized in a second direction and a fourth pulse light beam polarized in a direction orthogonal to the second direction and delayed by the second delay time with respect to the third pulse light beam, branch the second pulse light beam into two pulse light beams, provide the second delay time between the two branched pulse light beams, and combine the two branched pulse light beams, to output a fifth pulse light beam polarized in the second direction and a sixth pulse light beam polarized in a direction orthogonal to the second direction and delayed by the second delay time with respect to the fifth pulse light beam, anda polarization adjustment unit configured to adjust a polarization direction of the first pulse light beam and a polarization direction of the second pulse light beam,wherein the polarization adjustment ...

Analyte system and method for determining hemoglobin parameters in whole blood

A replaceable cuvette assembly for use in an optical absorbance measurement system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The replaceable cuvette assembly includes a cuvette substrate and a cuvette module fixedly connected to the cuvette substrate wherein the cuvette substrate is a support for securing the cuvette assembly within the optical absorbance measurement system. The cuvette module has a sample inlet port, a sample outlet port, an electronic chip assembly, a sample receiving chamber that fluidly communicates with the sample inlet port and the sample outlet port, a first cuvette window, and a second cuvette window forming a portion of the sample receiving chamber. The first cuvette window and the second cuvette window are aligned with each other defining a cuvette optical path length between the first cuvette window and the second cuvette window and disposed within an optical path of the optical absorbance measurement system. 1. A replaceable cuvette assembly for use in an optical absorbance measurement system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters , the cuvette assembly comprising:a cuvette substrate; anda cuvette module fixedly connected to the cuvette substrate wherein the cuvette substrate is a support for securing the cuvette assembly within the optical absorbance measurement system, the cuvette module having a sample inlet port, a sample outlet port, an electronic chip assembly, a sample receiving chamber that fluidly communicates with the sample inlet port and the sample outlet port, a first cuvette window, and a second cuvette window forming a portion of the sample receiving chamber wherein the first cuvette window and the second cuvette window are aligned with each other defining a cuvette optical path length between the first cuvette window and the second cuvette window and disposed within an optical path of the optical absorbance measurement system.2. The ...

REAL-TIME OPTICAL SPECTRO-TEMPORAL ANALYZER AND METHOD

An optical signal analyzing apparatus enables real-time and single-shot analysis simultaneously in both time and frequency domains with spectro-temporal analysis. The apparatus includes a fiber tap coupler for receiving an input optical signal from continuous wave (CW) to ultra-short pulses (femtosecond-picosecond). An optical splitter directs part of the signal to a frequency channel and part to a time channel A photodiode in the time channel directly monitors the intensity evolution and converts it to an electrical signal. In the frequency channel, two sub-channels are provided: one for CW/quasi-CW and one for short-pulse components. A signal processor analyses the time- and frequency-domain data from the time channel and frequency channel and displays the temporal and spectral evolutions simultaneously, so that the two different pieces of information of a non-repeated dynamic event can be correlated in different domains. 1. A versatile optical signal analyzing apparatus that enables real-time and single-shot analysis simultaneously in both time and frequency domains for non-repetitive ultrafast optical events with spectro-temporal analysis , comprises:a fiber-tap coupler for receiving an input optical signal from continuous wave (CW) to ultra-short pulses;an optical splitter which directs part of the signal to a frequency channel and part to a time channel;a high-speed photodiode in the time channel directly monitors the intensity evolution and converts it to an electrical signal;two sub-channels specified for CW/quasi-CW and short-pulse components form the frequency channel;a signal processor that analyses the frequency and time domain data from the time channel and frequency channels; anda display of the temporal and spectral evolutions simultaneously so that the two different piece of information of a non-repeated dynamic event can be correlated in different domains.2. The optical signal analyzing apparatus of wherein the input optical signal can be from any ...

SPECTRAL FILTERING FOR RAMAN SPECTROSCOPY

A Raman spectroscopy system is provided. The spectroscopy system includes an optical switch including a first side having a pump inlet and a return outlet, and a second side having a plurality of pump outlets and a plurality of return inlets. The spectroscopy system includes at least one radiation source optically coupled to the pump inlet and a detector optically coupled to the return outlet. The spectroscopy system further includes a pump filter module optically coupled between the at least one radiation source and the pump outlets and a return filter module optically coupled between the detector and the return inlets. The spectroscopy system further includes a plurality of probes, each probe optically connected to at least one of the plurality of pump outlets by at least one excitation fiber and optically coupled to one of the return inlets by at least one emission fiber. 1. A Raman spectroscopy system comprising: a first side having a pump inlet and a return outlet, and', 'a second side having a plurality of pump outlets and a plurality of return inlets;, 'an optical switch comprisingat least one radiation source optically coupled to the pump inlet of the optical switch;a detector optically coupled to the return outlet of the optical switch;a pump filter module optically coupled between the at least one radiation source and the pump outlets of the optical switch;a return filter module optically coupled between the detector and the return inlets of the optical switch; anda plurality of probes, each probe optically connected to at least one of the plurality of pump outlets of the optical switch by at least one excitation fiber and optically coupled to one of the return inlets of the optical switch by at least one emission fiber.2. The spectroscopy system of claim 1 , wherein the optical switch comprises a pump optical switch and a return optical switch claim 1 , wherein the pump optical switch comprises the pump inlet and the plurality of pump outlets claim 1 , ...

Spectroscopy apparatus and method

There is presented a spectroscopic apparatus and method wherein an input light source that inputs pump light to a photon pair source. The photon pair source converts pump photons into signal and idler photon pairs. The photon pair source is, in some of examples described herein, tuneable so that the wavelength of the signal and idler photons can be changed by application of a tuning means. At least one of the signal and idler photons is made incident upon a medium under test. A heralding detection apparatus is used to detect any signal and idler photons output from the spectroscopy apparatus, wherein at least one of the photons of the pair has interacted with or been operated upon by the medium under test.

OPTICAL FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample. 1. An optical assembly comprising:a first laterally variable bandpass optical filter in an optical path of signal light; anda second laterally variable bandpass optical filter fixed at a first distance from the first laterally variable bandpass optical filter in the optical path downstream of the first laterally variable bandpass optical filter;wherein the first laterally variable bandpass optical filter has a first bandpass center wavelength,wherein the second laterally variable bandpass optical filter has a second bandpass center wavelength, andwherein the first bandpass center wavelength and the second bandpass center wavelength vary in a mutually coordinated fashion along a first direction transversal to the optical path.2. The optical assembly of claim 1 , wherein the first bandpass center wavelength and the second bandpass center wavelength monotonically increase in the first direction.3. The optical assembly of claim 1 , wherein the first bandpass center wavelength and the second bandpass center wavelength have a substantially identical dependence of the bandpass center wavelength on distance along the first direction.4. The optical assembly of claim 1 , further comprising:an optical fiber having a first end and a second end; andan optical conduit having a first surface and a second surface,wherein the first surface of the optical conduit ...

INTEGRATED OPTICAL DEVICE FOR CONTACTLESS MEASUREMENT OF ALTITUDES AND THICKNESSES

An optical device for contactless measurement of height and/or thickness. The optical device having an axial chromatic aberration in order to encode the height and/or thickness information of an object positioned in the measurement field. The optical system is anchored in a confocal architecture. A detection system decodes the information through a detection system allowing the wavelength(s) focused on the surface(s) of the object to be discriminated. A plurality of points can be measured simultaneously or successively. 112-. (canceled)13. A chromatic confocal measurement apparatus for measuring height , wherein the measurement apparatus is configured to measure simultaneously a plurality of distinct points of an object , and comprising a measurement volume which is defined , in a direction of an optical axis , by an axial chromatic aberration thereof , and in a plane normal to the optical axis , by an image lateral field consisting of a plurality of image points , and at least one polychromatic source allowing a plurality of source points to be generated either directly under free field conditions or via propagation inside a set of illumination optical fibres;', 'a combination/separation assembly configured to combine and/or separate beams;', 'a set of lenses forming a chromatic optical system configured to accept an object lateral field defined by the plurality of source points, and comprising at least one lens having an extended axial chromatic aberration, which forms, in a space of the object, an image lateral field, an axial position of which depends on a wavelength;', 'a spectral analysis device associated with a photodetector, and configured to image a plurality of spectra corresponding to a plurality of image points forming the image lateral field;', 'a plurality of spatial filters located in a conjugated image plane of a set of lenses and organised strictly identically to the plurality of source points located in the object lateral field, and wherein the ...

PORTABLE RAMAN DEVICE

The disclosure provides a portable Raman device that includes a laser for emitting exciting light; a spectrometer for receiving Raman scattered light and converting the Raman scattered light into an electrical signal after beam splitting; a probe for leading the exciting light to irradiate on a sample and collect the Raman scattered light of the sample; and a fiber system connected between the laser and the probe as well as between the probe and the spectrometer so as to conduct light transmission. In comparison to conventional Raman devices, the portable Raman device of the disclosure has a simplified optical system, such that placement of components of the Raman device are more flexible, the whole size of the Raman device are reduced, and thus requirements of size miniaturization and quick real-time measurement are satisfied. 1. A portable Raman device , comprising:a laser configured to emit exciting light;a probe configured to lead the exciting light to irradiate on a sample and collect Raman scattered light of the sample;a spectrometer configured to receive the Raman scattered light and convert the Raman scattered light into an electrical signal after beam splitting; anda fiber system connected between the laser and the probe as well as between the probe and the spectrometer so as to conduct light transmission.2. The portable Raman device of claim 1 , wherein the fiber system includes a leading fiber between the laser and the probe and a collecting fiber between the probe and the spectrometer.3. The portable Raman device of claim 1 , wherein the fiber system includes a fiber circulator having three ports that are respectively connected to the laser claim 1 , the probe and the spectrometer via a fiber.4. The portable Raman device of claim 3 , wherein a port of the fiber circulator is connected to a plurality of spectrometers respectively via a plurality of fibers.5. The portable Raman device of claim 3 , wherein the fiber system includes a beam splitter claim 3 , ...

DEVICE FOR ACQUIRING OPTICAL INFORMATION OF OBJECT

An information acquiring device that acquires information on a measurement object includes: a dividing section that divides pulsed light having a center wavelength λc emitted from a light source into lights for a plurality of optical paths; waveguides provided in each of the optical paths; a multiplexing section that multiplexes lights emitted from the waveguides; and an information acquiring section that acquires information through detection of a light obtained by the multiplexing by the multiplexing section and applied to the object. In the information acquiring device, the waveguides provided in the optical paths, respectively are waveguides having different zero dispersion wavelengths, and the waveguides generate a plurality of wavelength-converted lights each having a center wavelength different from the center wavelength λc of the pulse light.

Near-infrared time-of-flight imaging using laser diodes with bragg reflectors

A remote sensing system includes an array of laser diodes configured to generate light. One or more scanners are configured to receive a portion of the light from the array of laser diodes and to direct the portion of the light from the array of laser diodes to an object. A detection system is configured to receive at least a portion of light reflected from the object and is configured to be synchronized to the at least a portion of the array of laser diodes comprising Bragg reflectors. The remote sensing system is configured to generate a two-dimensional or three-dimensional mapping using at least a portion of a time-of-flight measurement. The remote sensing system is adapted to be mounted on a vehicle and communicate with a cloud. The at least a portion of the two-dimensional or three-dimensional mapping is combined with global positioning system information.

RAMAN PROBE AND BIOLOGICAL COMPONENT ANALYZING APPARATUS USING THE SAME

A Raman probe includes: a light source configured to emit light onto an object; a light collector configured to collect Raman-scattered light from the object by reflecting the Raman-scattered light, the light collector including a light incident port, a light emitting port, and a reflective surface including a light incident port portion and a light emitting port portion, a slope of the light incident port portion with respect to an optical axis of the light collector being smaller than a slope of the light emitting port portion with respect to the optical axis; a condenser lens configured to collect the Raman-scattered light collected by the light collector; and a photodetector configured to detect the Raman-scattered light collected by the condenser lens. 1. A Raman probe comprising:a light source configured to emit light onto an object; a light incident port;', 'a light emitting port; and', 'a reflective surface comprising a light incident port portion and a light emitting port portion, a slope of the light incident port portion with respect to an optical axis of the light collector being smaller than a slope of the light emitting port portion with respect to the optical axis;, 'a light collector configured to collect Raman-scattered light from the object by reflecting the Raman-scattered light, the light collector comprisinga condenser lens configured to collect the Raman-scattered light collected by the light collector; anda photodetector configured to detect the Raman-scattered light collected by the condenser lens.2. The Raman probe of claim 1 , wherein the light collector is a body of revolution having the optical axis as a rotation axis.3. The Raman probe of claim 1 , wherein the reflective surface is provided on an inner circumferential surface of the light collector.4. The Raman probe of claim 1 , wherein the slope of the reflective surface increases from the light incident port toward the light emitting port.5. The Raman probe of claim 1 , wherein a ...

Optical Spectrometer

Provided in one example is an apparatus, including a microfluidic channel supported by a substrate. An optical spectrometer includes a waveguide supported by the substrate. The waveguide includes a coupler and outcouplers. A light source directs light to the coupler of the waveguide. Optical sensors are supported by the substrate. Each of the optical sensors is optically coupled to one of the outcouplers. 1. An apparatus comprising:a substrate;a microfluidic channel supported by the substrate; a waveguide supported by the substrate, the waveguide comprising an input coupler and outcouplers;', 'a light source to direct light to the input coupler of the waveguide; and', 'optical sensors supported by the substrate, each of the optical sensors optically coupled to one of the outcouplers., 'an optical spectrometer comprising2. The apparatus of further comprising a microfluidic pump supported by the substrate to move fluid through the microfluidic channel.3. The apparatus of claim 2 , wherein the microfluidic pump comprises a thermal inkjet resistor.4. The apparatus of claim 1 , wherein the optical sensors and the outcouplers are on a same side of the microfluidic channel.5. The apparatus of claim 1 , wherein the optical sensors and the output couplers are on opposite sides of the microfluidic channel.6. The apparatus of further comprising:a second microfluidic channel supported by the substrate;a second waveguide supported by the substrate, the waveguide comprising a second input coupler and second outcouplers; anda second light source to direct a second light, different than the light, across the second microfluidic channel into engagement with the second input coupler of the second waveguide; andsecond optical sensors supported by the substrate, each of the second optical sensors optically coupled to one of the second outcouplers.7. The apparatus of further comprising:a reference microfluidic channel supported by the substrate;a reference waveguide supported by the ...

Optical measurement device and optical measurement method

In multiplex CARS, a fingerprint region is a region where signals are densely concentrated. Information about the intensities and spatial distribution of these signals is important in cell analysis. However, there has been a problem in that the signal intensities are low. Accordingly, mechanisms 702 and 703 for adjusting the power branching ratio between light that enters a photonic crystal fiber 705 and pumping light; mechanisms 710 and 711 for adjusting the divergence/convergence state of the pumping light; and mechanisms 706 and 2101 for adjusting the divergence/convergence state of Stokes light are provided to enable adjustment for emphasizing a desired wavelength band.

OPTICAL SCRAMBLERS

The disclosure features optical scramblers that can be used with spectrographs and other optical measurement systems, including Doppler-based radial velocity measurement systems and other precision spectroscopy. In one aspect, an optical scrambler includes a first fiber configured to receive measured light from an optical collection system, a second fiber configured to deliver the measured light to a detection system, and an optical coupling element positioned between a light output surface of the first fiber and a light input surface of the second fiber and configured to deliver the measured light from the first fiber to the second fiber. The coupling element defines an output focal position for the measured light that is delivered to the second fiber and the output focal position is located within 50 microns of an output surface of the coupling element. 1. An optical scrambler comprising:a first fiber configured to receive measured light from an optical collection system;a second fiber configured to deliver the measured light to a detection system; andan optical coupling element positioned between a light output surface of the first fiber and a light input surface of the second fiber and configured to deliver the measured light from the first fiber to the second fiber,wherein the coupling element defines an output focal position for the measured light that is delivered to the second fiber and the output focal position is located within 50 microns of an output surface of the coupling element.2. The optical scrambler of claim 1 , wherein the output surface of the coupling element has a spherical shape that defines the output focal position.3. The optical scrambler of claim 2 , wherein a radius of the output surface is determined based on one or more parameters of the first fiber including a core diameter and numerical aperture.4. The optical scrambler of claim 1 , wherein the output focal position is at the output surface of the optical coupling element.5. The ...

Power delivery through an optical system

In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.

SPECTROSCOPIC ANALYSIS DEVICE, OPTICAL SYSTEM, AND METHOD

A spectroscopic analysis device includes: a film that contacts a sample subject to spectroscopic analysis; a first irradiator that irradiates a first irradiation light having transition energy to decompose attached material attached to a boundary surface of the film; and an optical waveguide that transmits the first irradiation light irradiated from the first irradiator. A first evanescent wave, based on the first irradiation light, is generated on a front surface of the optical waveguide, and is then projected on an attached region of the attached material. 1. A spectroscopic analysis device , comprising:a film that contacts a sample subject to spectroscopic analysis;a first irradiator that irradiates a first irradiation light having transition energy to decompose attached material attached to a boundary surface of the film; andan optical waveguide that transmits the first irradiation light irradiated from the first irradiator, whereina first evanescent wave, based on the first irradiation light, is generated on a front surface of the optical waveguide, and is then projected on an attached region of the attached material.2. The spectroscopic analysis device according to claim 1 , whereinthe optical waveguide comprises a reflective surface that completely reflects the first irradiation light incident on the optical waveguide, andthe first irradiation light incident on the optical waveguide is transmitted while being completely reflected by the reflective surface in the optical waveguide.3. The spectroscopic analysis device according to claim 1 , further comprising:a first detector that detects a first measured light emitted from the optical waveguide, whereinthe first measured light is based on the first irradiation light irradiated by the first irradiator, andthe first measured light comprises first information of an absorption spectrum of the attached material.4. The spectroscopic analysis device according to claim 3 , further comprising: obtains, from the first ...

Method and Apparatus for Quantifying Solutions Comprised of Multiple Analytes

A multi-analyte sensor system based on hollow core photonic bandgap fiber and Raman anti-Stokes spectroscopy. The system includes: 120.-. (canceled)21. An analyzer system for determining the identity and concentration of at least one target analyte present in a gaseous or liquid sample utilizing the Raman optical scattering effect , the analyzer system comprising:(i) a laser light source emitting light which generates Raman Stokes and anti-Stokes emissions when incident on the target analyte; (a) a first inlet permitting introduction of a sample containing the target analyte into the HCPBG fibers; and', '(b) at least one reference calibrant in the HCPBG fibers, the reference calibrant corresponding to an analyte in the sample;, '(ii) one or more hollow core photonic band-gap (HCPBG) fibers optically connected to the laser light source, HCPBG fibers including(iii) a pump configured to inject the sample containing the target analyte into the core of the HCPBG fiber; and(iv) a spectral analysis system optically coupled to the HCPBG fibers and configured to derive the Raman anti-Stokes spectral peaks and/or spectra of the reference calibrant to establish a baseline response and account for cross sensitivities or spectral peak overlaps in the sample.22. The system of claim 21 , where the one or more HCPBG fibers comprise a single HCPBG fiber that has multiple hollow channels claim 21 , wherein at least one of the hollow channels is pre-filled with the reference calibrant.23. The system of claim 21 , where the one or more HCPBG fibers comprise two or more HCPBG fibers wound in parallel along a mandrel claim 21 , where at least one of the HCPBG fibers comprises the reference calibrant claim 21 , the system further comprising a coupler which switches the laser light source output from one fiber to the other.24. The system of claim 21 , where the one or more HCPBG fibers comprise a single HCPBG fiber having two or more parallel channels wound along a mandrel claim 21 , where ...

Refractory anchor device and system

Refractory anchoring devices include a main body and a mounting feature for mounting to a thermal vessel. The main body has the shape of two end-to-end Y's forming a central segment, two branch segments extending from each end of the central segment, and an extension segment extending from each of the four branch segments, to collectively form four unenclosed cell openings that are each semi-hexagonal in shape. Some embodiments include four reinforcement segments with each one extending into a respective cell opening, four voids with each one extending through respective adjacent branch and extension segments, an underbody gap formed under the central segment for refractory interlinking between cell openings, and/or a single stud-welding stud for the mounting feature. Refractory anchoring systems and methods include an array of the refractory anchoring devices arranged and mounted so that the unenclosed semi-hexagonal cell openings of adjacent anchoring devices cooperatively form substantially hexagonal cells.

Dmd based uv absorption detector for liquid chromatography

A detector for use in liquid chromatography is provided. The detector includes a light delivery system comprising a light source that emits one or more spectral lines of light of a light spectrum. The detector has an entrance slit configured to receive the one or more spectral lines of light and a wavelength selection module comprising a digital micro-mirror device. The digital micro-mirror device is configured to redirect the one or more spectral lines of light to a flow cell. The flow cell is optically connected to the wavelength selection module.

CARBON ISOTOPE ANALYSIS DEVICE AND CARBON ISOTOPE ANALYSIS METHOD

A carbon isotope analyzer includes a carbon dioxide isotope generator that includes a combustion unit that generates gas containing carbon dioxide isotope from carbon isotope, and a carbon dioxide isotope purifying unit; a spectrometer including an optical resonator having a pair of mirrors and a photodetector that determines the intensity of light transmitted from the optical resonator and a light generator including a light source a first optical fiber to transmit a light beam from the light source a second optical fiber for wavelength conversion, the second optical fiber splitting from the first optical fiber at a point and combining with the first optical fiber at another point downstream of the splitting point, and a non-linear optical crystal that generates light having the absorption wavelength of the carbon dioxide isotope on the basis of the difference in frequency between light beams transmitted through the optical crystal The carbon isotope analyzer is a simple and convenient apparatus that can analyze isotope C. 1. A carbon isotope analyzer comprising:a carbon dioxide isotope generator comprising a combustion unit that generates gas containing carbon dioxide isotope from carbon isotope; and a carbon dioxide isotope purifying unit;a spectrometer comprising an optical resonator having a pair of mirrors, and a photodetector that determines the intensity of light transmitted from the optical resonator; anda light generator comprising a light source; a first optical fiber to transmit a light beam from the light source; a second optical fiber for wavelength conversion, the second optical fiber splitting from the first optical fiber at a splitting node and coupling with the first optical fiber at a coupling node downstream of the splitting node; and a non-linear optical crystal that generates light having an absorption wavelength of the carbon dioxide isotope based on the difference in frequency between light beams transmitted through the optical crystal.2. The ...

Optical probe

An optical probe includes an optical source that generates an optical beam that propagates from a proximal end to a distal end of an optical fiber that imparts a transformation of a spatial profile of the optical beam. An optical control device imparts a compensating spatial profile on the optical beam that at least partially compensates for the transformation of the spatial profile of the optical beam imparted by the optical fiber in response to a control signal from a signal processor. A distal optical source generates a calibration light that propagates through the one or more optical waveguides from the distal end to the proximal end of the optical fiber. An optical detector detects the calibration light and generates electrical signals in response to the detected calibration light. The signal processor generates the control signal to instruct the optical control device to impart the compensating spatial profile on the optical beam that at least partially compensates for the transformation of the spatial profile of the optical beam imparted by the optical fiber.

TARGETING SYSTEM

A targeting system for a spectrophotometer includes a plurality of fiber channels, including at least one measurement channel and at least one illumination channel. A slit assembly includes a translucent layer disposed adjacent the plurality of fiber channels, and reflective portion disposed adjacent the translucent layer. Each fiber channel includes a first end, the first end offset from the reflective portion of the slit assembly to allow light transfer from one fiber channel to an adjacent fiber channel. A light source is in optical communication with the at least one illumination channel. A sample plane is in optical communication with a second end of the measurement channel. The system is configured such that light is transmitted from the light source, through the at least one illumination channel, reflected off the slit assembly, transmitted through the measurement channel, and onto the sample plane. 1. A targeting system for a spectrophotometer , comprising: at least one measurement channel; and', 'at least one illumination channel;, 'a plurality of fiber channels, comprising a translucent layer disposed adjacent the plurality of fiber channels, and', 'reflective portion disposed adjacent the translucent layer;, 'a slit assembly comprisingwherein each fiber channel comprises a first end, the first end offset from the reflective portion of the slit assembly to allow light transfer from one fiber channel to an adjacent fiber channel;a light source in optical communication with the at least one illumination channel; anda sample plane in optical communication with a second end of the measurement channel, wherein the system is configured such that light is transmitted from the light source, through the at least one illumination channel, reflected off the slit assembly, transmitted through the measurement channel, and onto the sample plane.2. The targeting system of claim 1 , further comprising a spectrophotometer in optical communication with the measurement ...

Tip for diagnosis laser handpiece capable of controlling laser energy emitted to target and its spot size

According to an embodiment, a tip for a diagnosis laser handpiece, coupled to a handpiece and used therein includes: a light emission module configured to emit a laser to a target; and a light adjustment module disposed on a path through which the laser emitted to the target travels. The light adjustment module is configured to adjust energy of the laser emitted to the target, and a focus size of the laser.

SPECTROSCOPY SYSTEM WITH LASER AND PULSED OUTPUT BEAM

A spectroscopy system includes a light source having an input light source, including semiconductor diodes generating an input beam with a wavelength shorter than 2.5 microns. Cladding-pumped fiber amplifiers receive the input beam and form an amplified optical beam having a spectral width. A nonlinear element broadens the spectral width of the amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam that is pulsed. A filter is coupled to at least one of a lens and a mirror that receives the output beam and delivers the filtered output beam to a sample. A detection system includes detectors configured to receive the output beam reflected or transmitted from the sample. The detection system is configured to use a lock-in technique with the pulsed output beam and the spectroscopy system is adapted to detect chemicals in the sample. 1. A spectroscopy system , comprising: an input light source, including one or more semiconductor diodes, configured to generate an input beam that comprises a wavelength shorter than 2.5 microns;', 'one or more optical amplifiers configured to receive at least a portion of the input beam and to form an amplified optical beam having a spectral width, wherein at least a portion of the one or more optical amplifiers comprises a cladding-pumped fiber amplifier; and', 'a nonlinear element configured to receive at least a portion of the amplified optical beam and to broaden the spectral width of the received amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam, wherein the output beam is pulsed;, 'a light source comprisinga filter coupled to at least one of a lens and a mirror configured to receive at least a portion of the output beam, and to deliver at least a portion of the received output beam to a sample; anda detection system comprising one or more detectors configured to receive at least a part of the output beam reflected or transmitted from the sample, wherein the ...

FILTER ARRAY RECONSTRUCTIVE SPECTROMETRY

A spectrometry system may include an etalon array having a first etalon and a second etalon. The first etalon may be configured to process light to at least generate a first transmission pattern. The first transmission pattern may have at least a first transmission peak corresponding to a first wavelength in an original spectrum of the light. The second etalon may be configured to process the light to at least generate a second transmission pattern. The second transmission pattern may have at least a second transmission peak corresponding to a second wavelength in the original spectrum of the light. The first etalon may have a different thickness than the second etalon in order for the first transmission pattern to have at least one transmission peak that is at a different wavelength than the second transmission pattern. The first transmission pattern and the second transmission pattern may enable a reconstruction the original spectrum of the light. 1. A system , comprising:an etalon array having a first etalon and a second etalon, the first etalon being configured to process light to at least generate a first transmission pattern, the first transmission pattern having at least a first transmission peak corresponding to a first wavelength in an original spectrum of the light, the second etalon being configured to process the light to at least generate a second transmission pattern, the second transmission pattern having at least a second transmission peak corresponding to a second wavelength in the original spectrum of the light, the first etalon having a different thickness than the second etalon in order for the first transmission pattern to have at least one transmission peak that is at a different wavelength than the second transmission pattern, and the first transmission pattern and the second transmission pattern enabling a reconstruction the original spectrum of the light for spectroscopy.2. The system of claim 1 , further comprising:at least one data ...

RECONFIGURABLE OPTICAL FIBER SPECTROMETER IN A LIGHTING DEVICE

A spectrometer-equipped lighting device detects substances in an environment around the device. A fiber detector is optically coupled to receive light from a light source. The fiber detector has a bare area from which emanates an evanescent wave of light surrounding an exterior of the fiber detector to interact with the environment in which the fiber detector is exposed. The spectrometer, optically coupled to an opposite end of the fiber detector, detects the light output and in response, generates signals representative of the spectral power distribution of the light of the evanescent wave that has interacted with the surrounding environment. A controller analyzes the spectrometer generated signals and initiates action based on the analysis of the generated signals or outputs a report indicating an environmental condition detected by the spectrometer-equipped device. 1. A system , comprising:a lighting device comprising a light source configured to output light;a fiber detector optically coupled to the light source to receive a portion of the output light at a first end of the fiber detector, the fiber detector having a bare area emanating an evanescent wave of the light surrounding an exterior of the fiber detector to interact with an environment in which the bare area of the fiber detector is exposed; detect light outputted from the fiber detector, and', 'generate signals representative of a spectral power distribution of the detected light, the generated signals corresponding to the interaction of the evanescent wave with the environment;, 'a spectrometer optically coupled to a second end of the fiber detector to receive the light from the fiber detector after the interaction of the evanescent wave with the environment, the spectrometer configured toa memory storing spectral reference data and program instructions; anda processor operatively coupled to the memory, the light source and the spectrometer, wherein in response to executing the stored program ...

MICROSPECTROSCOPE INCLUDING OPTICAL FIBERS AND SPECTROSCOPE

A microspectroscope includes: a light source; a plurality of light projecting optical fibers that receive light from the light source; a spectroscope; a plurality of light receiving optical fibers for guiding received light to the spectroscope; and a confocal optical system for causing each of a plurality of beams from the plurality of light projecting optical fibers to be condensed and irradiated onto a sample, and forming images of a plurality of beams from a plurality of condensing points on the sample, respectively on the plurality of light receiving optical fibers. 1. A microspectroscope , comprising:a light source;a plurality of light projecting optical fibers that receive light from the light source;a spectroscope;a plurality of light receiving optical fibers for guiding received light to the spectroscope; anda confocal optical system for causing each of a plurality of beams from the plurality of light projecting optical fibers to be condensed and irradiated onto a sample, and forming images of a plurality of beams from a plurality of condensing points on the sample, respectively on the plurality of light receiving optical fibers.2. The microspectroscope according to claim 1 ,wherein the plurality of light projecting optical fibers and the plurality of light receiving optical fibers are individually two-dimensionally arranged, andat least either the plurality of light projecting optical fibers or the plurality of light receiving optical fibers are arranged closer to each other than in a state in which the optical fibers are arranged in contact with each other in a square lattice, in a cross-section cut along a plane that is orthogonal to an extending direction of the optical fibers.3. The microspectroscope according to claim 1 , a light projecting marker optical fiber that is fixed along the plurality of light projecting optical fibers and that receives light from a light source, on an input end side of the light projecting optical fibers; and', 'a light ...

SELF-HOMING OPTICAL DEVICE

Optical systems have uses, such as in spectrometers, for directing a beam. A spectrometer, for example, utilizes an optical system for directing an incident beam toward a sample and receiving a spectroscopy signal from the sample. In various implementations, for example, an optical system may be further configured to move a beam with respect to a target, such as a sample, and still provide a home position where the beam is directed in a stationary configuration. A self-homing (e.g., self-centering) optical system may provide a “home” position in which the beam is directed in a first stationary mode while still allowing a focused beam to be moved with respect to a target in a second dynamic mode. 1. A self-homing or self-centering optical system comprising:a reflective surface coupled to a motor configured to move the reflective surface relative to an optical beam in a first mode such that the beam is moved relative to a target in a first mode and to direct the beam in an at least generally consistent orientation relative to the target in a second mode.2. The optical system of wherein the motor is configured to change an angle of the reflective surface relative to the beam such that the reflected beam is moved with respect to the target.3. The optical system of wherein the reflective surface is biased to provide a home angle when stationary.4. The optical system of wherein the reflective surface is biased by a spring.5. The optical system of wherein the reflective surface is coupled to or formed with a mirror mount comprising at least one mass.6. The optical system of wherein the at least one mass is offset from a hinge such that the at least one mass is configured to provide a moment to overcome a counteracting force provided by the bias and change the angle of the reflective surface.7. The optical system of wherein the reflective surface is coupled to or formed with a mirror mount claim 1 , wherein the mirror mount is coupled to a base mount at least one spring ...

SYSTEMS AND METHODS FOR INTERNAL SURFACE CONDITIONING ASSESSMENT IN PLASMA PROCESSING EQUIPMENT

In an embodiment, a plasma source includes a first electrode, configured for transfer of one or more plasma source gases through first perforations therein; an insulator, disposed in contact with the first electrode about a periphery of the first electrode; and a second electrode, disposed with a periphery of the second electrode against the insulator such that the first and second electrodes and the insulator define a plasma generation cavity. The second electrode is configured for movement of plasma products from the plasma generation cavity therethrough toward a process chamber. A power supply provides electrical power across the first and second electrodes to ignite a plasma with the one or more plasma source gases in the plasma generation cavity to produce the plasma products. One of the first electrode, the second electrode and the insulator includes a port that provides an optical signal from the plasma. 1. A plasma processing system , comprising two processing units , each of the two processing units comprising: a first planar electrode,', 'a second planar electrode defining apertures providing fluid access to a processing region of the processing unit, and', 'a ring shaped insulator disposed in contact with a periphery of the first electrode, and in contact with a periphery of the second electrode; and, 'a plasma generation region bounded bya power supply configured to supply electrical power across the first and second planar electrodes to ignite a plasma of source gases in the plasma generation region, to produce the plasma products;wherein:one of the first electrode, the second electrode or the insulator defines a port providing access for an optical signal from the plasma, the port being configured to limit interactions on the optical signal by the plasma products after passing through the second electrode.2. The plasma processing system of claim 1 , each of the two processing units further comprising:a planar diffuser between the second planar ...

Information obtaining apparatus and information obtaining method

An information obtaining apparatus includes a splitting unit, a terahertz wave generation unit, a terahertz wave detection unit, a fiber, a changing unit that changes an optical path length difference between optical path lengths of pump light and probe light by changing an optical path length of the fiber, a waveform construction unit, and an obtaining unit that obtains information related to the optical path length of the fiber. The obtaining unit includes a splitting unit that splits the pump or probe light before propagating through the fiber into first light and second light, a formation unit that forms interfering light, and an optical detection unit that detects an intensity of the interfering light. The waveform construction unit constructs a terahertz wave time waveform by extracting a detection result of the terahertz wave detection unit based on a detection result of the optical detection unit.

PHOTON COUNTING AND SPECTROSCOPY

A measurement system includes an optical source (e.g., laser) to irradiate a sample (e.g., a cell); a solid-state photon detector (SSPD) to receive resultant light from the sample; and a photon counter to count photons received by the SSPD. The photon counter can include a differentiator to provide a differentiated photon signal and a crossing detector configured to count photons based on a number of times the differentiated photon signal crosses a predetermined threshold level. In some examples, a pulse detector can provide a pulse-width signal from the SSPD output photon signal, and a pulse counter can count based on both a number of pulses and widths of the pulses. The SSPD can include a silicon photomultiplier (SiPM) array or a solid-state photomultiplier. Some examples use the measurement system to measure samples in fluids, e.g., in flow cytometers or multi-well plates. 1. A measurement system , comprising:a flow chamber configured to propagate a sample in a flow stream;one or more optical sources configured to irradiate the sample in the flow stream;one or more detector systems each configured to receive resultant light from the sample and, in response, provide a photon signal;wherein each of the one or more detector systems further configured to process the associated photon signal to count photons based on i) single photon pulses or ii) integrating photo-electron charge over a time interval from the associated photon stream present in the resultant light.2. The measurement system of claim 1 , wherein each of the one or more detector systems includes one or more semiconductor photomultipliers (SPMs) selected from the group consisting of vacuum-tube based photomultiplier tube (PMT) claim 1 , a solid-state photomultiplier tube (SSPMT) claim 1 , a silicon photomultiplier (SiPM) claim 1 , an avalanche photodiode (APD) claim 1 , and a single-photon avalanche diode (SPAD).3. The measurement system of claim 1 , wherein each of the one or more optical sources is a ...

Collection optics system for spectrometer and raman spectral system

A collection optics system for a spectrometer and a Raman spectral system including the collection optics system is provided. The collection optics system is configured to selectively collect a Raman signal from scattered light output from a target object, the collection optics system includes a non-imaging collection unit configured to collect the Raman signal and output the Raman signal, the non-imaging collection unit including an entrance surface on which the scattered light is incident and an exit surface through which the Raman signal is output, and a Raman filter provided on a portion of the entrance surface of the non-imaging collection unit and configured to block the scattered light including a fluorescence signal. Therefore, the collection optics system may suppress reception of the fluorescence signal of the scattered light and selectively collect the Raman signal.

Optical head and measuring apparatus

An optical head includes a first module that concentrates pump light and Stokes light on a first point; a second module that collects CARS light from the first point; and a third module that supports the first module and the second module. The first module includes: a high rigidity first frame; and a first optical system including a plurality of optical elements fixed to the first frame. The second module includes: a high rigidity second frame; and a second optical system including a plurality of optical elements fixed to the second frame. The third module includes a high rigidity third frame that fixes the first frame and the second frame.

DIAGNOSTIC SYSTEM WITH BROADBAND LIGHT SOURCE

A diagnostic system is provided with a plurality of semiconductor light emitters, each configured to generate an optical beam, and a beam combiner to generate a multiplexed optical beam. An optical fiber or waveguide communicates at least a portion of the multiplexed optical beam to form an output beam, wherein the output beam is pulsed. A filter, coupled to at least one of a lens and a mirror to receive at least a portion of the output beam, forms an output light. A beam splitter splits the light into a sample arm and a reference arm and directs at least a portion of the sample arm light to a sample. A detection system is configured to receive from the sample at least a portion of reflected sample light, to generate a sample detector output, and to use a lock-in technique with the pulsed output beam. 1. A diagnostic system , comprising: an input light source, including one or more semiconductor diodes, configured to generate an input beam that comprises a wavelength shorter than 2.5 microns, and', 'one or more optical amplifiers configured to receive at least a portion of the input beam and form an amplified optical beam having a spectral width;, 'a light source comprisinga nonlinear element configured to receive at least a portion of the amplified optical beam and to broaden the spectral width of the received amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam, wherein the output beam is pulsed;at least one of a lens and a mirror configured to receive at least a portion of the output beam;a filter coupled to the lens or the mirror and configured to form an output light; receive at least part of the output light,', 'split the received output light into a sample arm and a reference arm, and', 'direct at least a portion of the sample arm light to a sample;, 'a beam splitter configured to receive from the sample at least a portion of reflected sample light,', 'generate a sample detector output, and', 'use a lock-in technique with ...

Frequency Comb for Downhole Chemical Sensing

The present disclosure relates to systems and methods for analyzing fluids. The method for analyzing a chemical sample within a wellbore, contained within an interrogation device, may comprise broadcasting a coherent light from a frequency comb module, directing the coherent light through a fiber optic line to the interrogation device, irradiating the chemical sample with the coherent light, capturing light resulting from the irradiation of the chemical sample, and producing a spectrum resulting from the captured light from the chemical sample. A frequency comb system for analyzing a chemical sample may comprise a frequency comb module configured to broadcast a coherent light and a fiber optic line that extends into a wellbore to an interrogation device. The interrogation device may further be configured to contain the chemical sample for irradiation by the coherent light. The frequency comb system may further comprise a receiver and an information handling system. 1. A method for analyzing a chemical sample within a wellbore , contained within an interrogation device , the method comprising:broadcasting a coherent light from a frequency comb module;directing the coherent light through a fiber optic line to the interrogation device;irradiating the chemical sample with the coherent light;capturing light resulting from the irradiation of the chemical sample; andproducing a spectrum resulting from the captured light from the chemical sample.2. The method of further comprising capturing the chemical sample in the interrogation device in the wellbore.3. The method of claim 1 , wherein the fiber optic line extends into the wellbore.4. The method of claim 1 , wherein the frequency comb module comprises at least one frequency comb.5. The method of claim 1 , wherein the frequency comb module comprises a beam splitter and a low pass filter.6. The method of claim 1 , further comprising altering the irradiated light from the frequency comb module with an information handling ...

CARS MICROSCOPE

To measure homodyne interference with a CARS microscope, a supercontinuum beam is used as a light source. A supercontinuum beam is generated using a nonlinear optical fiber that has normal dispersion in which the coherence between pulses is maintained. As the phases of the interference components of detected beams are the same between pulses, it is possible to integrate the interference components and thus improve the signal-noise ratio. 1. A CARS microscope comprising:{'sub': 'P', 'a pulsed laser light source configured to generate a first beam with a frequency ω;'}a normal dispersion nonlinear optical fiber configured to receive the first beam and generate a supercontinuum beam;{'sub': 'ST', 'an optical element configured to select from the supercontinuum beam a second beam with a frequency ωthat is lower than the frequency of the first beam;'}{'sub': AS', 'P', 'ST, 'an optical element configured to select from the supercontinuum beam a third beam as a reference beam with a frequency ω=2·ω−ω;'}an optical unit configured to align the first beam and the second beam on the same axis;a mechanism for adjusting phases of the first beam and the second beam;an objective lens configured to focus the first beam and the second beam that are coaxial beams onto an observation sample;a scanning mechanism for scanning the observation sample;an objective lens configured to detect a CARS beam generated from the observation sample;an interference optical unit configured to cause the CARS beam and the third beam to interfere with each other;spectrometers each configured to disperse an interference beam obtained by the interference optical unit;photodetectors each configured to detect a beam dispersed by each spectrometer;a computing unit configured to process signals from the photodetectors; anda display device configured to display an image on the basis of information of the computing unit.2. The CARS microscope according to claim 1 , wherein the nonlinear optical fiber has normal ...

Light source apparatus, and information acquisition apparatus using the same

A center wavelength of first pulsed light (exciting pulsed light) is variable, and a pulse rate of the first pulsed light coincides with an integer multiple of a free spectral interval of an optical oscillator at a center wavelength of second pulsed light (signal pulsed light or idler pulsed light). A center wavelength of a nonlinear gain generated by a nonlinear optical medium is made approximately coincident with the center wavelength of the second pulsed light.

SAMPLE RECEPTACLE FOR SPECTROPHOTOMETRY

Described herein is a receptacle for holding a sample under spectrophotometer analysis comprising: a body, first and second opposing windows separated by a gap to provide a volume for a sample, wherein at least the first opposing window is supported by a first compliant member, and wherein under a force, the first compliant member allows positioning of the first opposing window relative to a first datum to set a desired: a) gap between the first and second opposing windows, and/or b) relative orientation of the first and second opposing windows. 1. A receptacle for holding a sample under spectrophotometer analysis comprising:a bodyfirst and second opposing windows separated by a gap to provide a volume for a sample, wherein at least the first opposing window is supported by a first compliant member, andwherein under a force, the first compliant member allows positioning of the first opposing window relative to a first datum to set a desired: a) gap between the first and second opposing windows, and/or b) relative orientation of the first and second opposing windows.2. A receptacle according to wherein the second opposing window is supported by the first or a second compliant member claim 1 , wherein the first and/or second compliant member allows positioning of the second opposing window under force at the first datum and/or a second datum to set the desired a) gap between the first and second opposing windows claim 1 , and/or b) relative orientation of the first and second opposing windows.3. A receptacle for holding a sample under spectrophotometer analysis comprising:a bodyfirst and second opposing windows separated by a gap to provide a volume for a sample, wherein said first and second opposing windows are supported by said body, andwherein under a force, the body allows positioning of the windows relative to a datum set to set a desired: a) gap between the first and second opposing windows, and/or b) relative orientation of the first and second opposing ...

ADVANCED LIGHTING EFFECTS INVESTIGATION SYSTEM AND COMPUTERIZED METHOD

A mannikin-based optical analyzer for analyzing an exposure of a subject to an environmental lighting condition. The analyzer has a mannikin with an outer surface replicating a facial profile of the subject, an interior inside the outer surface, and at least one pupil for admission of light into the interior of the mannikin. The analyzer has at least one optical detector configured to acquire and wavelength analyze light directed through the at least one pupil. 1. A mannikin-based optical analyzer for analyzing an exposure of a subject to an environmental lighting condition , comprising:a mannikin comprising an outer surface replicating a facial profile of the subject, an interior inside the outer surface, and at least one pupil for admission of light into the interior of the mannikin;at least one optical detector configured to acquire and wavelength analyze light directed through the at least one pupil.2. The analyzer of claim 1 , wherein the at least one optical detector comprisesa first optical detector configured to a) acquire foveal light directed to a first position opposing the at least one pupil and b) wavelength analyze the foveal light into a foveal-light spectrum;a second optical detector configured to a) acquire retinal light directed to a second position opposite to the at least one pupil and b) wavelength analyze the retinal light into a retinal-light spectrum.3. The analyzer of claim 2 , further comprisinga processor programmed to a) store the foveal-light spectrum and the retinal-light spectrum and b) correlate the foveal-light spectrum and the retinal-light spectrum with the subject exposed to the environmental lighting condition.4. The analyzer of claim 2 , wherein the first optical detector and the second optical detector are disposed inside the mannikin.5. The analyzer of claim 2 , wherein the first optical detector claim 2 , the second optical detector claim 2 , and the processor are disposed inside the mannikin.6. The analyzer of claim 2 , ...

Devices, systems, and methods for agrochemical detection and agrochemical compositions

Systems, devices, and methods for detecting agrochemicals in environments associated with agricultural equipment are described. Certain agrochemicals that are formulated for being detected using the systems, devices, and methods disclosed herein are also described. The devices, systems, and methods disclosed herein are generally configured to use spectral characteristics to detect agrochemicals in an environment associated with agricultural equipment. The spectral characteristics can be analyzed in various ways to provide different types of information about the agrochemicals and/or the environment.

SPECTROSCOPY SYSTEM USING WAVEGUIDE AND EMPLOYING A LASER MEDIUM AS ITS OWN EMISSIONS DETECTOR

An intracavity laser absorption infrared spectroscopy system for detecting trace analytes in vapor samples. The system uses a spectrometer in communications with control electronics, wherein the control electronics contain an analyte database that contains absorption profiles for each analyte the system is used to detect. The system can not only detect the presence of specific analytes, but identify them as well. The spectrometer uses a hollow cavity waveguide that creates a continuous loop inside of the device, thus creating a large path length and eliminating the need to mechanically adjust the path length to achieve a high Q-factor. In a preferred embodiment, the laser source may serve as the detector, thus eliminating the need for a separate detector. 1. A spectroscopy system comprising:an infrared laser source having a pair of output facets that are optically coupled in such a way that a laser beam exiting each of the facets passes through a hollow fiber waveguide that directs the beam onto the other facet;a sample chamber positioned along the hollow fiber waveguide; anddata acquisition electronics for measuring an interaction between a sample in the sample chamber and the laser beam by monitoring an electrical component of the laser source.2. A gas phase analyte testing method comprising:generating an infrared laser beam from a laser source having a pair of output facets that are optically coupled in such a way that a laser beam exiting one of the facets passes through a hollow fiber waveguide that directs the beam onto the other facet; anddetecting an interaction between the laser beam and a sample positioned along the hollow fiber waveguide by monitoring an electrical component of the laser source. This application claims the benefit of U.S. Provisional Application No. 61/740,569 filed Dec. 21, 2012.The invention relates to the field of intracavity laser absorption spectroscopy. More particularly, the invention relates to intracavity laser absorption ...

OPTICAL MEASUREMENT PROBE, AND OPTICAL MEASUREMENT DEVICE PROVIDED WITH THE SAME

There are provided an optical measurement probe capable of obtaining a more stable measurement result, and an optical measurement device provided with the same. An incidence surface of an optical window to be used in a high temperature environment is covered by a deposited film. The optical window is formed of sapphire, and the deposited film is formed from SiO. Adhesion of dirt to the incidence surface, and an influence, on a measurement result, of the adhesion of dirt on the incidence surface can thereby be prevented, and a more stable measurement result can be obtained. 1. An optical measurement probe for guiding light generated in a high temperature environment to an appliance , comprising:an optical window for transmitting light incident on an incidence surface; anda light guide for guiding light which has passed through the optical window to the appliance,wherein the incident surface of the optical window is covered by a deposited film.2. The optical measurement probe according to claim 1 , wherein the optical window is formed of sapphire.3. The optical measurement probe according to claim 1 , wherein the deposited film is formed from SiO.4. The optical measurement probe according to claim 1 , wherein the deposited film is formed directly on the incidence surface.5. The optical measurement probe according to claim 1 , wherein at least one layer of another film is interposed between the deposited film and the incidence surface.6. The optical measurement probe according to claim 5 ,wherein the at least one layer of another film is formed to cover an entire surface of the incidence surface of the optical window, andwherein a multilayer film of the at least one layer of another film and the deposited film is formed on the entire surface of the incidence surface of the optical window.7. An optical measurement device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the optical measurement probe according to ; and'}a detector for detecting light guided ...