This article is cited in 2 papers

Photodetectors

Response of a matrix photodetector into components of an optical signal with different spatial frequencies

G. I. Greisukh, E. G. Ezhov, S. V. Kazin, S. A. Stepanov

Penza State University of Architecture and Construction

Abstract: We have used the method of direct evaluation of energy incident on each pixel of a photosensitive array to assess the distortions of a matrix photodetector response into a sinusoidal spatial signal. Using the data obtained, we have formulated recommendations for selecting a resolution of a matrix photodetector as a function of a maximum spatial frequency in the recorded interference pattern, as well as for matching of the resolutions of an objective and a photodetector of a digital camera or camcorder.

Keywords: matrix photodetector, sinusoidal spatial signal, interference pattern, spatial frequency, modulation transfer function, objective, spatial low-pass filter, digital camera, camcorder.

Received: 21.11.2016

 English version: Quantum Electronics, 2017, 47:1, 71–74

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