Abstract
For acoustic waves propagating in an acoustooptic tellurium crystal, the dependence of their polarization on the propagation direction with respect to the crystal axes is discussed. The characteristic features of waves propagating in the crystal are considered; these features manifest themselves in an excess of the phase velocity of shear acoustic modes over the velocity of longitudinal modes. The change in the wave type from quasi-longitudinal to quasi-transverse as a result of the variation in the propagation direction of ultrasound is investigated. It is shown that such a behavior of bulk acoustic waves is caused by the specific relation between the elastic moduli, which differs from the corresponding relations observed in other acoustooptic materials.
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Original Russian Text © N.V. Polikarpova, P.V. Mal’neva, V.B. Voloshinov, 2013, published in Akusticheskii Zhurnal, 2013, Vol. 59, No. 3, pp. 332–338.
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Polikarpova, N.V., Mal’neva, P.V. & Voloshinov, V.B. The anisotropy of elastic waves in a tellurium crystal. Acoust. Phys. 59, 291–296 (2013). https://doi.org/10.1134/S1063771013010144
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DOI: https://doi.org/10.1134/S1063771013010144