Diffraction of Bessel light beams by the surface Gulyaev–Blustein's acoustical waves in cubic piezoelectrical crystals

It is shown that for acousto-optic diffraction and modulation of Bessel light beams diffracted on Gulyaev–Blustein surface acoustic waves, reflected diffraction orders should be used along with the transmission diffraction orders. Acousto-optic diffraction of Bessel light beams can be used to diagnose Gulyaev–Blustein surface waves in cubic piezoelectric crystals. Diffraction of Bessel light beams of lower orders on crystal structures: air–GaAs–AlGaAs can be used to create multi-coordinate acousto-optic deflectors and modulators.