Polarization effects at two-beam interaction on reflection holographic gratings in sillenite crystals |
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| Authors: | S M Shandarov N I Burimov M A Dubtsov V G Sibagatulina D S Baklanov Yu N Kulchin R V Romashko Yu F Kargin A V Egorysheva V V Volkov |
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| Institution: | (1) State University of Control Systems and Radioelectronics, pr. Lenina 40, Tomsk, 634050, Russia;(2) Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, ul. Radio 5, Vladivostok, 690041, Russia;(3) Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117907, Russia |
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| Abstract: | The polarization structure of the signal wave that interacts with a circularly polarized pump wave on the reflection holographic gratings in the (112)-, (111)-, and (110)-cut Bi12TiO20 (BTO) crystals is experimentally and theoretically analyzed. An analytical expression for the vector field of the signal wave that is valid for an arbitrary orientation of the cubic refractive crystal is derived using approximation of the nondepleting circularly polarized pump wave. The contribution of the absorption component of the reflection hologram into the counter interaction is estimated for the crystals under study using the approximation of the experimental data with theoretical curves. Based on the experiments with incoherent quasi-monochromatic radiation, it is demonstrated that the real BTO crystals exhibit weak induced linear birefringence. |
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