Title :
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
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;
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
