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Proceedings Paper

Influence of self-diffraction on the photorefractive grating formation in cubic crystals by external square-wave electric field
Author(s): Sergey G. Chistyakov; Rudolf V. Litvinov; Stanislav M. Shandarov
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Paper 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.

Paper Details

Date Published: 27 August 1999
PDF: 12 pages
Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); doi: 10.1117/12.360053
Show Author Affiliations
Sergey G. Chistyakov, State Univ. of Control Systems and Radioelectronics (Russia)
Rudolf V. Litvinov, State Univ. of Control Systems and Radioelectronics (Russia)
Stanislav M. Shandarov, State Univ. of Control Systems and Radioelectronics (Russia)


Published in SPIE Proceedings Vol. 3737:
Design and Engineering of Optical Systems II
Fritz Merkle, Editor(s)

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