Optical processing by volume speckle in a sillenite crystal

Myrian C. Tebaldi; Alberto Lencina; Nestor A. Bolognini

doi:10.1117/12.437228

14 August 2001 Optical processing by volume speckle in a sillenite crystal

Myrian C. Tebaldi, Alberto Lencina, Nestor A. Bolognini

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437228
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

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.

Citation Download Citation

Myrian C. Tebaldi, Alberto Lencina, and Nestor A. Bolognini "Optical processing by volume speckle in a sillenite crystal", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437228

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