Abstract
Extrinsic photoconductive silicon detectors operated in the infrared at low-background flux and high bias voltage respond nonlinearly to strongly modulated illumination. They can exhibit a dc nonlinear response even at low bias. We present a simple mathematical prescription for computing the output corresponding to a given input signal. This phenomenological model predicts results in reasonable agreement with measured response data for square wave input modulation.
© 1981 Optical Society of America
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