Kheng, K.K.KhengSchneider, H.H.SchneiderFuchs, F.F.FuchsKoidl, P.P.KoidlRalston, J.D.J.D.RalstonRamsteiner, M.M.Ramsteiner2022-03-032022-03-031992https://publica.fraunhofer.de/handle/publica/18214510.1063/1.107816We 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.eninfrared detectorInfrarotdetektorIntersubband-Absorptionmultispectral detectorQuantentopf Detektorquantum well detector621667Two-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 mymjournal article