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Two-color GaAs/-AlGa-As quantum well infrared detector with voltage-tunable spectral sensitivity at 3-5 and 8-12 mym.

Zweifarben GaAs/AlGaAs Quantentopf-Infrarotdetektor mit spannungsabhängiger Empfindlichkeit bei 3-5 und 8-12 mym

: Kheng, K.; Schneider, H.; Fuchs, F.; Koidl, P.; Ralston, J.D.; Ramsteiner, M.

	Applied Physics Letters 61 (1992), No.6, pp.666-668 : Abb.,Lit. ISSN: 0003-6951 ISSN: 1077-3118

	English
	Journal Article
	Fraunhofer IAF ()
	infrared detector; Infrarotdetektor; Intersubband-Absorption; multispectral detector; Quantentopf Detektor; quantum well detector

Abstract
We report on a novel GaAs:Si/(AlGa)As multiquantum well photodetector structure which exhibits photoresponse maxima in both the 8 - 12 and 3 - 5 Mym spectral regions. The relative intensity of these maxima strongly depends on the bias voltage, demonstrating the potential of such a structure as a tunable two-color intersubband detector.

: http://publica.fraunhofer.de/documents/PX-37165.html