Influence of the external electric field on the energy exchange direction at the two-wave interaction in the photorefrative Bi12TiO20

Oleg V. Kobozev; Rudolf V. Litvinov; Stanislav M. Shandarov

doi:10.1117/12.360060

27 August 1999 Influence of the external electric field on the energy exchange direction at the two-wave interaction in the photorefrative Bi₁₂TiO₂₀

Oleg V. Kobozev, Rudolf V. Litvinov, Stanislav M. Shandarov

Author Affiliations +

Proceedings Volume 3737, Design and Engineering of Optical Systems II; (1999) https://doi.org/10.1117/12.360060
Event: Optical Systems Design and Production, 1999, Berlin, Germany

Abstract

We demonstrate experimentally and theoretically that the sign of two-wave coupling gain in sillenite crystal at some polarization of light changes with the increase of the amplitude of square-wave field applying along the axis. It is shown that the nonunidirectional energy exchange is the reason of this effect in Bi₁₂TiO₂₀ single crystal. Such energy exchange is bound with the contribution of the self-diffraction gyration effect into the efficiency of the two-wave interaction. At the theoretical analysis we used the mode obtained on the basic of the mode approach. Made the numerical calculation of the dependency of the two-wave coupling gain on the amplitude applied field has god agreement with the experimental data. This calculation has allowed estimating the material parameters of the investigated samples of the crystal.

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Oleg V. Kobozev, Rudolf V. Litvinov, and Stanislav M. Shandarov "Influence of the external electric field on the energy exchange direction at the two-wave interaction in the photorefrative Bi₁₂TiO₂₀", Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); https://doi.org/10.1117/12.360060

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