Features on photorefractive registered speckles



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The recording and read-out of a volume speckle pattern is investigated for transmission geometry. The modulation of the 3D speckle grains appears when the image of a coherently illuminated random diffusor is formed onto the crystal by an optical system whose pupil consists of two identical holes. The intensity distribution of the speckle pattern imaged onto the BSO crystal leads to a space-charge field by drift of photocarriers, resulting in a refractive index modulation. The main features of diffracted read-out light at the Fourier plane are discussed. © (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.


Proc. SPIE 3729

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CitationMyrian C. Tebaldi ; Luciano A. Toro and Nestor A. Bolognini "Features of photorefractive registered speckles", Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, 365 (April 29, 1999); doi:10.1117/12.346810; http://dx.doi.org/10.1117/12.346810