Resonant cavity enhanced GaInAsSb photodetectorsgrown by MBE for room temperature operation at 2.35 µm

Abstract
Resonant cavity enhanced photodetectors based on GaInAsSb have been successfully fabricated and characterised to operate at a resonant wavelength of 2.35 µm at room temperature. The photodetectors show a maximum quantum efficiency of η = 63%, a peak responsivity of R = 1.21 A/W and a detectivity D* of 5.84 × 109 cmHz1/2W-1 at –0.5 V bias at the resonant wavelength.