Schneider, H.H.SchneiderSchönbein, C.C.SchönbeinBihlmann, G.G.BihlmannSon, P. vanP. vanSonSigg, H.H.Sigg2022-03-032022-03-031997https://publica.fraunhofer.de/handle/publica/19045510.1063/1.118628We have investigated the temporal response of uncooled photovoltaic quantum well infrared photodetectors (PV QWIP) using 2 ps pulses from a free electron laser. We measured rise and fall times of 8 ps and 63 ps, respectively. We have also determined the temperature dependence of the voltage responsivity and resistance of the sample from 70 K to 300 K. Based on these measurements, we discuss the figures of merit of PV QWIPs in a high-bandwidth 50 ohm environment.enGaAs/AlGaAsphotovoltaicPhotovoltaiktime-dependent photocurrentzeitabhängiger Photostrom621667journal article