Fast operation of GaAs based adaptive photodetectors in visible light

Author

Korneev, N. ; Mansurova, S. ; Rodriguez, Paul ; Stepanov, S.

Author_Institution

Inst. Nacional de Astrofisica, Opt. y Electron., Puebla, Mexico

fYear

1996

fDate

2-7 June 1996

Firstpage

367

Abstract

Summary form only given. Three main configurations are actually used for photorefractive crystal (PRC) based adaptive detection of ultrasound vibrations of real; diffusely scattering objects. They are the scheme with phase-conjugated wave, two-wave mixing configuration, and the configuration based on the nonsteady-state photoelectromotive force (EMF). All of them compensate for complicated (speckle like) wavefronts and for slow environmental phase drift. We performed measurements of highfrequency response of GaAs adaptive photodetectors.

Keywords

III-V semiconductors; adaptive optics; compensation; gallium arsenide; multiwave mixing; optical phase conjugation; photodetectors; photorefractive materials; speckle; ultrasonic measurement; vibrations; GaAs; GaAs adaptive photodetectors; GaAs based adaptive photodetectors; adaptive detection; diffusely scattering objects; highfrequency response; nonsteady-state photoelectromotive force; phase-conjugated wave; photorefractive crystal; slow environmental phase drift; speckle like wavefronts; two-wave mixing configuration; ultrasound vibrations; visible light; Gallium arsenide; Light scattering; Object detection; Partial response channels; Performance evaluation; Photodetectors; Photorefractive materials; Speckle; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-443-2

Type

conf

Filename

864796