Archives of Acoustics, 20, 2, pp. 171-175, 1995

On spurious bulk wave exicitation in SAW grating reflectorson GaAs (001) (110)

E. Danicki
Institute of Fundamental Technological Research, Polish Academy of Sciences, 00-049 Warszawa, Świętokrzyska 21

W.D. Hunt
Georgia Institute of Technology Atlanta, Georgia
United States

Reflection of SAW from groove gratings on cubic crystal is analyzed numerically on the basis of perturbation theory. It is shown that for certain angles of incidence, the conversion of SAW into bulk waves vanishes. This reduces the SAW reflection loss from grating.
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