Influence of self-diffraction on the photorefractive grating formation in cubic crystals by external square-wave electric field

Sergey G. Chistyakov; Rudolf V. Litvinov; Stanislav M. Shandarov

doi:10.1117/12.360053

27 August 1999 Influence of self-diffraction on the photorefractive grating formation in cubic crystals by external square-wave electric field

Sergey G. Chistyakov, Rudolf V. Litvinov, Stanislav M. Shandarov

Author Affiliations +

Proceedings Volume 3737, Design and Engineering of Optical Systems II; (1999) https://doi.org/10.1117/12.360053
Event: Optical Systems Design and Production, 1999, Berlin, Germany

Abstract

For the two-wave interaction in a cubic photorefractive crystal under square-wave electric field we analyzed the self-consistent interdependence of the space charge field and modulation index of the light field. Analytical dependency on the interaction length and on the time of the space charge field amplitude and modulation index of the light field. Analytical dependency on the interaction length and on the time of the space charge field amplitude and modulation index is obtained for the case of the periodical time dependency of the both value and small modulation index. The analysis of the kinetics of the space charge field amplitude and its dependency on the frequency of the applied field are made at the arbitrary interaction length for parameters corresponding to the Bi₁₂SiO₂₀ crystal. It is shown that the time dependency of the space charge field amplitude can strongly vary at the increase of the interaction length. Behavior of this change is determined by the orientation of the grating vector relatively the crystallographic coordinate system. It is demonstrated that the frequency dependency of the space charge field amplitude varies at the rotation of the grating vector on 180 degrees.

Citation Download Citation

Sergey G. Chistyakov, Rudolf V. Litvinov, and Stanislav M. Shandarov "Influence of self-diffraction on the photorefractive grating formation in cubic crystals by external square-wave electric field", Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); https://doi.org/10.1117/12.360053

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