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Proceedings Paper

Optical processing by volume speckle in a sillenite crystal
Author(s): Myrian C. Tebaldi; Alberto Lencina; Nestor A. Bolognini
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Paper Abstract

A 3D modulated speckle pattern is stored in terms of the refractive index variation in a photorefractive BTO crystal. An image of a random diffuser is formed onto the crystal by means of a lens, which has a mask with two apertures. The intensity distribution received by the crystal creates a space charge field that indices through the linear electro- optic effect, a spatial variation of the refractive index. The angular selectivity involved in the volume nature of the registered speckle and its main features are analyzed. Besides, applications to optical processing are presented.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437228
Show Author Affiliations
Myrian C. Tebaldi, Ctr. de Investigaciones Opticas (Argentina)
Alberto Lencina, Ctr. de Investigaciones Opticas (Argentina)
Nestor A. Bolognini, Ctr. de Investigaciones Opticas (Argentina)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

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