Features of photorefractive registered speckles

Myrian C. Tebaldi; Luciano Angel Toro; Nestor A. Bolognini

doi:10.1117/12.346810

29 April 1999 Features of photorefractive registered speckles

Myrian C. Tebaldi, Luciano Angel Toro, Nestor A. Bolognini

Proceedings Volume 3729, Selected Papers from International Conference on Optics and Optoelectronics '98; (1999) https://doi.org/10.1117/12.346810
Event: Selected Papers from the International Conference on Optics and Optoelectronics, 1998, Dehradun, India

Abstract

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.

Citation Download Citation

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

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