Photorefractive materials and their applications in optical image processing

Author

Foote, P.D. ; Hall, T.J. ; Aldridge, N.B. ; Lvenston, A.G.

Author_Institution

Kings College London, Department of Physics, London, UK

Volume

133

Issue

1

fYear

1986

fDate

2/1/1986 12:00:00 AM

Firstpage

83

Lastpage

90

Abstract

A brief review of a band transport model for the photorefractive effect is given. Distinction is made between the influence of intrinsic material dependent parameters and externally controlled parameters on the form of the optical nonlinearity. These considerations are made in the context of dynamic holographic optical processing applications. Examples of adaptive optical and Fourier-plane image processing using four-wave mixing in photorefractive bismuth silicon oxide crystals are discussed. Critical assessment is then made of the use of photorefractive materials in image cross-correlation schemes.

Keywords

adaptive optics; bismuth compounds; holography; nonlinear optics; photorefractive effect; picture processing; Bi12SiO20; Fourier-plane image processing; adaptive optical image processing; band transport model; dynamic holographic optical processing; four-wave mixing; image cross-correlation schemes; optical image processing; optical nonlinearity; photorefractive effect; photorefractive materials;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings J

Publisher

iet

ISSN

0267-3932

Type

jour

DOI

10.1049/ip-j.1986.0012

Filename

4644094