Abstract.
It is shown that non-steady-state photo-EMF-based adaptive photodetector operates like an optimal detecting medium when detection of a general spatial shift of a complicated light pattern is needed. This detecting medium can be considered as some spatial distribution of photo-induced p–n junctions matched with the original light pattern and its sensitivity is limited basically by the thermal (Johnson) noise of the detector volume itself.
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Received: 8 December 1998 / Revised version: 1 February 1999 / Published online: 12 April 1999
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Stepanov, S. Photo-EMF-based adaptive detectors as optimal photodetectors for detection of light-pattern displacements . Appl Phys B 68, 1027–1030 (1999). https://doi.org/10.1007/s003400050741
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DOI: https://doi.org/10.1007/s003400050741