Modification of the parabolic approximation in the theory of ultrasonic-beam diffraction in a strongly anisotropic crystal

A modification of the parabolic approximation of the diffraction theory is based on the approximation of the wave surface with allowance for the shape of the angular spectrum of the ultrasonic beam. It is demonstrated that such an approach is more accurate in the analysis of the acoustic field at a...

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Veröffentlicht in:Technical physics 2013-12, Vol.58 (12), p.1715-1720
Hauptverfasser: Antonov, S. N., Vainer, A. V., Proklov, V. V., Rezvov, Yu. G.
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container_issue 12
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container_title Technical physics
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creator Antonov, S. N.
Vainer, A. V.
Proklov, V. V.
Rezvov, Yu. G.
description A modification of the parabolic approximation of the diffraction theory is based on the approximation of the wave surface with allowance for the shape of the angular spectrum of the ultrasonic beam. It is demonstrated that such an approach is more accurate in the analysis of the acoustic field at a relatively high diffraction divergence and/or high acoustic anisotropy. An acoustic field is simulated in paratellurite, which is a leading acoustic material with anomalously high acoustic anisotropy.
doi_str_mv 10.1134/S1063784213120037
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subjects Analysis
Anisotropy
Classical and Continuum Physics
Physics
Physics and Astronomy
Theoretical and Mathematical Physics
title Modification of the parabolic approximation in the theory of ultrasonic-beam diffraction in a strongly anisotropic crystal
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