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Proceedings Paper

Photodetectors for fast images recognition on structures with Shottky barriers
Author(s): P. G. Kasherininov; A. V. Kichaev; A. A. Tomasov; V. K. Sokolov
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Paper Abstract

The paper proposes semiconducting photodetectors for fast images recognition. Photodetector is illuminated simultaneously with two beams of "intrinsic" light. One of the beams carries image of the reference object the other provides image of the current object. While the images are identical the photoresponse turns to be maximum. Photodetector represents itself a processor which multiplies the the corresponding elements of these images and integrates the result over the square. Photodetector is a plane-parallel plate of crystal with high resistance (GaAs, CdTe) with a photosensitive n - p junction at one side and Shottky barrier (optical detecting medium) at the other one.

Paper Details

Date Published: 11 January 2007
PDF: 11 pages
Proc. SPIE 6594, Lasers for Measurements and Information Transfer 2006, 65941G (11 January 2007); doi: 10.1117/12.725689
Show Author Affiliations
P. G. Kasherininov, A.F. Ioffe Physico-Technical Institute (Russia)
A. V. Kichaev, A.F. Ioffe Physico-Technical Institute (Russia)
A. A. Tomasov, A.F. Ioffe Physico-Technical Institute (Russia)
V. K. Sokolov, Baltic State Technical Univ. Voenmekh (Russia)


Published in SPIE Proceedings Vol. 6594:
Lasers for Measurements and Information Transfer 2006

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