CONTROLLABLE BRAGG REFLECTOR

The invention relates to a controllable Bragg reflector (100), which is suitable for reflecting incident light. Said Bragg reflector comprises at least one layer of a superlattice (110), wherein the superlattice comprises at least one layer composed of a first group-3 nitride and at least one second...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WILLE, Ada, KALISCH, Holger
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention relates to a controllable Bragg reflector (100), which is suitable for reflecting incident light. Said Bragg reflector comprises at least one layer of a superlattice (110), wherein the superlattice comprises at least one layer composed of a first group-3 nitride and at least one second layer composed of a second group-3 nitride. Furthermore, the Bragg reflector comprises at least one layer consisting of a semiconductor material. In addition, at least two electrodes (130, 140) are comprised, wherein at least one electrode is transparent to the incident light (150) or has a suitable structure that ensures at least partial light incidence into the semiconductor and superlattice layers and wherein a voltage (U) can be applied between said electrodes.