Scattering of elastic surface waves on a localized mechanical load of the surface

Downloads

Authors

  • A. DUKATA Institute of Technical Physics, Poland
  • J. KAPELEWSKI Institute of Technical Physics, Poland

Abstract

This paper presents a model of scattering of elastic surface waves (ESW) on a single reflective elements of dot structures loading the surface of a hexagonal structure with a sixfold rotation axis, normal to the plane of propagation. Qualitative results obtained with the use of TIERSTEN type boundary conditions [7] and reduced Green's functions presented by MARADUDIN and DOBRZYŃSKI [14] are given for a rectangular dot. Resultant components of the scattering amplitude were achieved with the utilization of an approximation of the stationary phase and approximation of far distances.

References

[1] L. P. SOLIE, Surface acoustic wave reflection dot array, Appl. Phys. Lett., 28, 420-422 (1976).

[2] L. P. SOLIE, A SAW filter using a reflective dot array, Proc. IEEE Ultr. Symp. Cat. No. 76Ch1120-5SU, 309-312 (1976).

[3] L. P. SOLIE, Reflective dot array devices, Proc. IEEE Ultr. Symp. Cat. No. 77CH1264-1SU, pp. 579 584 1977.

[4] H. VAN de VAART, L. P. SOLIE, A SAW pulse compression filter using the reflective dot array, Appl. Phys. Lett. 31, 1-3 (1977).

[S] E. AKCAKAYA, G. W. FARNELL, Reflection acoustic surface waves from a row of dots, Wave Electronics, 4, 49-55 (1979).