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Photorefractive “camera obscura”

Authors:	Alexander Grabar Roman Iegorov

Institution:	^a Institute of Solid State Physics and Chemistry, Uzhgorod National University, Pidhirna 46, 88000 Uzhgorod, Ukraine ^b Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 5209 CNRS-Université de Bourgogne, 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France ^c Institute of Physics, National Academy of Sciences, 03 650 Kyiv, Ukraine

Abstract:	We demonstrate a novel scheme for lensless image formation which combines the properties of an amplifying dynamic hologram and a pinhole camera. The scheme is realized on the base of a SPS:Sb1% photorefractive crystal working at 633 nm.

Keywords:	Imaging systems Physical optics Photorefractive effect Wave mixing
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