LIGHT EMITTING DIODE
PURPOSE: To provide a novel light emitting semiconductor device and a product comprising such a device. CONSTITUTION: A device utilizing the real space transfer comprises a confronting effective conductive region separated by a barrier layer 32. Within the first region 31 (called 'emitter') containing at least two contacts 370, 371, when a proper bias is applied between the two contacts as well as between the emitter and the second region 36, hot carrier is implanted in the second region 36 to emit light in the second region 36. This invention can be applied to coherent light source similar to incoherent light source. A preferable embodiment is vertical cavity face light emitting laser. This device can be actuated as a new logic element having electric input and optical output thereby enabling normally hard to get logic function to be discharged. COPYRIGHT: (C)1992,JPO
