Detection of moving object by phase conjugation in photo induced anisotropic dye-doped film

1 July 1990

proceedings article
Published by SPIE-Intl Soc Optical Eng

p. 87
https://doi.org/10.1117/12.22216

Abstract

Several methods for detection of a moving object against static bkground in photorefrtive terials (e. g. BSO and BaTiO3) have been reported by using optical phase conjugation or two wave mixing ' 2) Here we donstrate the real-time detection of the moving object using optical phase conjugation in a methyl-orangedopxi polyvinyl alcohol (MO-PVA) film, in which trans-cis photo-isomorization induces optical anisotropy. The present method es two cross-polarized components of the phase conjugate (PC) wave at a wavelength of 515 r.

Keywords

FERROELECTRIC MATERIALS
ANISOTROPY

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