Anisotropy of Attenuation of Acoustic Waves in Photorefractive Bso and Bgo Crystals

Abstract

Anisotropy of attenuation of acoustic waves in photorefractive BSO and BGO crystals has been studied in the frequency range of 0.4−1.6 GHz. The anisotropy parameters determined by the imaginary constants of BSO and BGO crystals are equal 0.58 and 0.52, respectively. It is shown that the most contribution of dielectric loss to the attenuation of acoustic waves is observed for the piezoactive transversal waves propagating in the (100) plane.