Articles you may be interested inPhotorefractive effect and photochromism in the Fe -doped relaxor ferroelectric crystal Pb ( Zn 1 ∕ 3 Nb 2 ∕ 3 ) O 3 -PbTiO 3

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We study the process of two-wave mixing (TWM) in optically active, electro-optic, and elasto-optic BSO and BTO crystals. We calculate the TWM gain for arbitrary crystal cut and optimize the energy exchange. For the (111) cut, by choosing an appropriate coordinate system, we obtain a simple analytical solution for the components of the coupling tensor which allows us to optimize analytically the TWM gain with respect to the grating orientation and the initial light polarization.