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Proceedings Paper

Implementation of pattern detection with polarization coding using bacteriorhodopsin film
Author(s): Kayo Shimizu; Yasuhiro Takaki; Hitoshi Ohzu
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Paper Abstract

A different image encoded by polarization coding generates a different polarization distributed on its Fourier plane. This fact enables to realize pattern detection with polarization. The method is reported better capability to discriminate gray-level images. It has been formerly reported that we have implemented the polarization coding and polarization spatial filter using liquid crystal spatial light modulators with phase modulation and optical rotatory power. In recent years the use of bacteriorhodopsin (BR) as a holographic recording material has been studied intensively. BR films are sensitive to polarization because the BR is the photoinduced anisotropic material. In this paper, we propose the possibility of bacteriorhodopsin films for polarization spatial filter and investigate simplification of pattern detection system with polarization information.

Paper Details

Date Published: 24 May 2000
PDF: 6 pages
Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000);
Show Author Affiliations
Kayo Shimizu, Waseda Univ. (Japan)
Yasuhiro Takaki, Nihon Univ. (Japan)
Hitoshi Ohzu, Waseda Univ. (Japan)

Published in SPIE Proceedings Vol. 4089:
Optics in Computing 2000
Roger A. Lessard; Tigran V. Galstian, Editor(s)

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