title: Anisotropic acousto-optic interaction in tellurium crystal with acoustic walk-off.
abstract: The influence of the acoustic beam energy walk-off on characteristics of anisotropic Bragg diffraction of light is studied theoretically by the example of a tellurium single crystal. Calculations for wide ranges of Bragg angles and ultrasound frequencies are produced on the basis of an original solution of the acousto-optic (AO) interaction problem, which takes into consideration the acoustic walk-off. It is established that the walk-off can substantially change the region of AO interaction, resulting in narrowing or broadening of the frequency characteristic depending on the crystal cut, acoustic frequency, incident light polarization, and walk-off angle sign.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Balakshy
authors.forename: Andrey
authors.initials: A
authors.lastname: Voloshin