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Proceedings Paper

Features of photorefractive registered speckles
Author(s): Myrian C. Tebaldi; Luciano Angel Toro; Nestor A. Bolognini
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Paper 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.

Paper Details

Date Published: 29 April 1999
PDF: 6 pages
Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); doi: 10.1117/12.346810
Show Author Affiliations
Myrian C. Tebaldi, Ctr. de Investigaciones Opticas and Univ. Nacional de La Plata (Argentina)
Luciano Angel Toro, Ctr. de Investigaciones Opticas and Univ. Nacional de La Plata (Colombia)
Nestor A. Bolognini, Ctr. de Investigaciones Opticas and Univ. Nacional de La Plata (Argentina)


Published in SPIE Proceedings Vol. 3729:
Selected Papers from International Conference on Optics and Optoelectronics '98
Kehar Singh; Om Prakash Nijhawan; Arun Kumar Gupta; A. K. Musla, Editor(s)

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