The Bragg diffraction of light by acoustophotorefractive holographic gratings in gyrotropic cubic crystals

摘要

The diffraction of light by the phase gratings of holographic type recorded by means of piezoactive ultrasonic wave in the gyrotropic cubic photoretractive crystal is investigated. It is shown that significant increasing of the diffraction efficiency on the holograpfic gratings may be reached by the external electrical field under condition of longitudinal electrooptical effect. The intermediate regime under study is close to the Bragg regime of the diffraction of light by acoustophotorefractive holographic gratings.