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Finite-wavelength effect on the ballistic propagation of surface acoustic waves
| Title: | Finite-wavelength effect on the ballistic propagation of surface acoustic waves |
| Authors: | Tamura, Shin-ichiro1 Browse this author →KAKEN DB | | Yagi, Masashi Browse this author |
| Authors(alt): | 田村, 信一朗1 |
| Issue Date: | 15-Jun-1994 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 49 |
| Issue: | 24 |
| Start Page: | 17378 |
| End Page: | 17384 |
| Publisher DOI: | 10.1103/PhysRevB.49.17378 |
| Abstract: | We study the phonon-focusing effects of the Rayleigh and pseudosurface waves propagating ballistically on the (100) surface of cubic crystals. Specifically, solving the wave equations for lattice displacements, we consider the finite-wavelength effect at the MHz-frequency range and for 1-cm propagation distance. The amplitude and polarization of lattice displacements at the surface associated with surface waves are sensitive to the propagation direction. Owing to this characteristic of surface waves, the focusing factor defined in the ray picture does not necessarily describe correctly the intensity of surface waves excited from a point source. The angular dependences of the calculated displacement amplitudes explain an important feature of the recent focusing experiment of Rayleigh waves, which the simple theory based on the focusing factor fails to predict. |
| Rights: | Copyright © 1994 American Physical Society |
| Relation: | http://www.aps.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/5957 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 田村 信一朗
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