Abstract
This paper presents the results of an experimental study of how an electric field affects the position of the plane of polarization of a transverse elastic wave and the acoustooptical interaction in a lithium tantalate crystal. It is established that an electric field of 1 kV/cm rotates the plane of polarization of a sound wave with frequency 580 MHz passing through 1 cm of a crystal by 2.5°. The nonlinearity parameter is evaluated at gammaE=4.3×10−11 m/V.
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