Acoustic Modes Transformation upon Reflection in Tellurium Dioxide Crystal
N.V. Polikarpova and V.B. Voloshinov
Faculty of Physics, Lomonosov Moscow State University, GSP-2, Leninskiye Gory, 119991 Moscow, Russia
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Generation of acoustic shear waves in crystals is one of the main problem of acousto-optics. Launching of the shear waves is much more difficult than the longitudinal modes because of difficulties related to acoustic contact and also because of problems arising from matching of acoustic and electric parameters of piezoelectric transducer. We obtained the transverse waves as a result of longitudinal-shear modes reflection in a crystal. Crystals having the required effect should possess a strong anisotropy of their elastic properties to realize the effective acoustic mode transformation. In this paper, one of the important cases of the acoustic waves reflection is investigated theoretically and experimentally. The research was carried out in the crystal of paratellurite.

DOI: 10.12693/APhysPolA.127.96
PACS numbers: 78.20.Hp, 42.79.Jq, 43.35.Sx, 43.35.+d