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Optical generation of surface acoustic waves guided at the linear boundary between two thin films
| Title: | Optical generation of surface acoustic waves guided at the linear boundary between two thin films |
| Authors: | Maznev, A. A. Browse this author | | Kelf, Timothy A. Browse this author | | Tomoda, Motonobu Browse this author | | Matsuda, Osamu Browse this author | | Wright, Oliver B. Browse this author |
| Keywords: | high-speed optical techniques | | localised modes | | substrates | | surface acoustic waves | | thin films |
| Issue Date: | 1-Feb-2010 |
| Publisher: | American Institute of Physics |
| Journal Title: | Journal of Applied Physics |
| Volume: | 107 |
| Issue: | 3 |
| Start Page: | 033521 |
| Publisher DOI: | 10.1063/1.3298472 |
| Abstract: | Laser-induced transient grating measurements and ultrafast optical pump-probe imaging of surface acoustic waves near a linear boundary between copper and silica films on a silicon substrate indicate the presence of a boundary-localized mode with a phase velocity slightly below the Rayleigh wave velocity on the copper film. We analyze in detail the dispersion of this localized mode in comparison with that of the Rayleigh waves in the surrounding materials. The existence of the localized mode is ascribed to the nonuniformity of the copper film thickness near its edge resulting from polishing during fabrication. |
| Rights: | Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 107, 033521 (2010) and may be found at https://dx.doi.org/10.1063/1.3298472 |
| Type: | article |
| URI: | http://hdl.handle.net/2115/42696 |
| 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: WRIGHT O. B.
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