Ju. Kang et al., INGAASP GROWN BY HE-PLASMA-ASSISTED MOLECULAR-BEAM EPITAXY FOR 1.55 MU-M HIGH-SPEED PHOTODETECTORS, Applied physics letters, 72(11), 1998, pp. 1278-1280
Simple photoconductive optical detectors for 1.55 mu m wavelength have
been fabricated on InGaAsP grown by He-plasma assisted molecular beam
epitaxy. Characterization of the photodetectors shows that their spee
d is determined by the free carrier trapping time, with a full width a
t half-maximum impulse response of approximately 6 ps. (C) 1998 Americ
an Institute of Physics.