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

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Authors

  • E. DANICKI Institute of Fundamental Technological Research Polish Academy of Sciences, Poland
  • W.D. HUNT Georgia Institute of Technology, United States

Abstract

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.

References

[1] E. DANICKI, Perturbation theory of surface acoustic wave reflection from a periodic grating with arbitrary angle of incidence, Arch. Mech., 36, 623—6338 1984.

[2] E. DANICKI, Reflection of SAW from periodic shallow grooves, Wave Motion, 9, 445—453 (1987).

[3] D. BOGUCKI, Propagation and generation of plate modes in piezoelectrics, (in Polish) dissertation Ph.D. IFTR-PAS, Warszawa 1994.