In this work, we study the resonant transmission of acoustic waves through a plate with quasiperiodic surface corrugations. The transmission spectrum shows peculiar transmission peaks, which cannot be simply attributed to the coherent diffraction as recognized previously in structured hard plates (without sustaining internal modes), whereas come from the resonant excitation of the coupled Stoneley surface modes in the elastic plate. The excitation frequencies can be determined by the geometrical structure factor of the quasiperiodic lattice, combining with the dispersion relation of the surface modes.
|Number of pages
|Physics Letters, Section A: General, Atomic and Solid State Physics
|Published - 31 Oct 2011
Bibliographical noteFunding Information:
This work is supported by the National Natural Science Foundation of China (Grant Nos. 10874131 , J0830310 , and 10944003 ); and Hubei Provincial Natural Science Foundation of China (Grant No. 2009CDA151 ); and the Fundamental Research Funds for the Central Universities .
- Coupled Stoneley surface modes
- Exotic acoustic transmission
- Quasiperiodic corrugations