3.5 GHz GaAs/Al_0.3Ga_0.7As I-MSM photodetector, compatible with heterostructure transistor technology

Abstract

For the first time, results on GaAs/Al0.3Ga0.7As short wavelength I-MSM photodetectors, compatible with GaAs heterostructure technologies are reported. Detector bandwidths greater than 3.5GHz were observed, with no low frequency gain and low dark currents.