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Proceedings Paper

Optical topographic technique to material characterization of photorefractive crystals
Author(s): S. Bugaychuk; G. Mandula; L. Koávcs; R. A. Rupp
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Paper Abstract

Nonlinear transmission wave-mixing problem in a photorefractive medium that include both local and non-local responses is solved not traditionally but with using a new variable namely the dynamic grating amplitude. The dynamics of the wave-mixing is described by a modified sine-Gordon equation that have soliton-like solutions for the dynamic grating amplitude. For the first time the solution for the grating amplitude distribution in a medium with complex response is obtained. The shape of the grating amplitude profile is determined only by the value of the non-local response in the steady state, and both by local and by non-local components of the response in a transient process. Complete analytical solutions with taking into consideration the complex medium response as well as the absorption in two-wave mixing are obtained. The described theoretical predictions can be a base for a novel topographical method to material characterization of photorefractive crystals that allows one to study contributions local and non-local components of the medium response more precisely.

Paper Details

Date Published: 6 December 2006
PDF: 11 pages
Proc. SPIE 6023, Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 60230J (6 December 2006); doi: 10.1117/12.648203
Show Author Affiliations
S. Bugaychuk, Institute of Physics (Ukraine)
G. Mandula, Research Institute for Solid State Physics and Optics (Hungary)
L. Koávcs, Research Institute for Solid State Physics and Optics (Hungary)
R. A. Rupp, Univ. of Vienna (Austria)


Published in SPIE Proceedings Vol. 6023:
Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey Iljin; Sergey Al. Kostyukevych, Editor(s)

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