The results of a theoretical study of the dependence of the diffraction efficiency of a transmission hologram formed in a sample of a Bi₁₂SiO₂₀ photorefractive crystal on the orientation angle, specific rotation of the crystal, and its thickness are presented. The theoretical model takes into account linear electrooptical, inverse piezoelectric and photoelastic effects. It is shown that with a change in the sign of the specific rotation of the crystal, there can be a shift of the maximums of diffraction efficiency relative to the orientation angle.

中文翻译：

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反压电效应，光弹性和光学活性对光折变晶体Bi 12 SiO 20中透射全息图衍射效率的影响

给出了在Bi ₁₂ SiO ₂₀光折变晶体样品中形成的透射全息图的衍射效率与取向角，晶体的比旋光及其厚度的相关性的理论研究结果。理论模型考虑了线性电光，逆压电和光弹性效应。结果表明，随着晶体比旋转符号的变化，衍射效率的最大值相对于取向角可能发生偏移。