Anisotropy dependence of the focused field radiated into a piezoelectric half-space by an interdigital transducer

Zhang, Y. W.; Planat, M.
February 1988
Applied Physics Letters;2/8/1988, Vol. 52 Issue 6, p456
Academic Journal
Bulk waves radiated into an anisotropic half-space by an interdigital transducer are studied theoretically. The mechanical displacements of excited waves are obtained by asymptotic evaluation of an integral whose singularities give rise to both Rayleigh surface waves and angularly focused bulk waves. By applying the analysis to singly rotated Y cuts of quartz with propagation normal to the x axis, it is shown that the orientation and width of the main lobe are very sensitive to frequency and crystal orientation.


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