Optimization of the diffraction efficiency in photorefractive crystals
A. L. Villamizar Amado, N. A. Arias Hernández, M. L. Molina Prado, M. Tebaldi
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Base Information
Volume
V50 - N2 / 2017 Ordinario
Reference
181-186
DOI
http://doi.org/10.7149/OPA.50.2.49044
Language
English
Keywords
Photorefractive crystals, diffraction efficiency
Abstract
The aim of this work is to study and to optimize the diffraction efficiency in sillenite BTO crystals. A theoretical analysis, where the effects of coupling beams are significant, is carried on. In addition, non-mobile transmission gratings are considered. The diffraction efficiency is obtained by using the coupled wave equations in on-Bragg regime using Method Runge-Kutta of order 4 in Matlab. Also, the non-uniformity of the gratings inside the crystal sample, the optical activity of the material and the polarization of the recording beams are taken into account.
References
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