The influences of light-induced gratings on the acoustooptical interaction of Bessel light beams in the gyrotropic cubic crystals

The influences of light-induced gratings determined by means of cubic optical nonlinearity on the Bragg diffraction by the Bessel light beams on ultrasound in the gyrotropic mediums are investigated. It is shown that under using Bessel light beams the plate of sufficiency display of optical nonlinearity under Bragg diffraction is substantially lowered. It was found that the diffraction efficiency of Stokes regime of the acousto-optical interaction reaches its maximum value under increasing the light intensity and anti-Stokes mode decreases monotonically.