December 2022
Intermediate to advanced
136 pages
3h 32m
English
Content preview from Contemporary Holography
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4Photorefractive dynamic holography
4.1 INTRODUCTION
The photorefractive dynamic holography uses a different type of non-linear optical effect known as photorefractive effect. The photorefractive effect occurs in certain crystals of sillienite family like Bismuth Germanium Oxide ( or BGO), Bismuth Silicon Oxide ( or BSO), Bismuth Titanium Oxide ( or BTO) and polar crystals like Barium Titanate (BaTiO3), Lithium Niobate (LiNbO3) etc[23-26]. The photorefractive effect occurs in these crystals when the refractive indices change due to optically induced spatial distribution of electrons and holes when two beams interfere inside these crystals. The photorefractive effect phenomena is different from conventional non-linear ...
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