title: Acousto-optic interaction in alpha-BaB(2)O(4)and Li(2)B(4)O(7) crystals.
abstract: Experimental studies and analysis of acousto-optic diffraction in alpha-BaB(2)O(4) and Li(2)B(4)O(7) crystals are given. Ultrasonic wave velocity, elastic compliance and stiffness coefficients, and piezo-optic and photoelastic coefficients of alpha-BaB(2)O(4) and Li(2)B(4)O(7) crystals are determined. The acousto-optic figure of merit has been estimated for different possible geometries of acousto-optic interaction. It is shown that the acousto-optic figures of merit for alpha-BaB(2)O(4) crystals reach the value M(2)=(270 +/- 70) x 10(-15) s(3)/kg for the case of interaction with the slowest ultrasonic wave. The directions of propagation and polarization of those acoustic waves are obtained on the basis of construction of acoustic slowness surfaces. The acousto-optic diffraction is experimentally studied for alpha-BaB(2)O(4) and Li(2)B(4)O(7) crystals.
authors.affiliation: Institute of Physical Optics, Lviv, Ukraine.
authors.forename: Irina
authors.initials: I
authors.lastname: Martynyuk-Lototska
authors.forename: Oksana
authors.initials: O
authors.lastname: Mys
authors.forename: Taras
authors.initials: T
authors.lastname: Dudok
authors.forename: Volodymyr
authors.initials: V
authors.lastname: Adamiv
authors.forename: Yevgen
authors.initials: Y
authors.lastname: Smirnov
authors.forename: Rostyslav
authors.initials: R
authors.lastname: Vlokh