FIELD: physics.
SUBSTANCE: to determine response time, the working surface of the analysed photodetector is illuminated with a series of separate light pulses. Spectral power density of the electrical signal at the output of the photodetector from each light pulse is determined. The first zero of the envelope function of the spectral powder density of each received electrical signal is calculated and the response time of the analysed photodetector is determined from said values.
EFFECT: high accuracy and simple measurement method.
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