Acousto-Optical Interaction in Media with Regulated Anisotropy

Abstract

Anisotropic Bragg diffraction of light has significant advantages in comparison with isotropic diffraction. These advantages are defined by the complicated character of Bragg angle dependence upon acoustic frequency. Devices like light modulators, light deflectors, tunable filters and etc. based on anisotropic diffraction have better parameters than apparatus based on isotropic diffraction. However there is a group of acousto-optical materials, such as cubic crystals and glasses, that have no optical anisotropy at all.