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Resonance and mode conversion of phonons scattered by superlattices with inhomogeneity
| Title: | Resonance and mode conversion of phonons scattered by superlattices with inhomogeneity |
| Authors: | Mizuno, Seiji1 Browse this author →KAKEN DB |
| Authors(alt): | 水野, 誠司1 |
| Issue Date: | 18-Nov-2003 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 68 |
| Start Page: | 193305 |
| Publisher DOI: | 10.1103/PhysRevB.68.193305 |
| Abstract: | For phonons propagating through superlattices, "intermode" Bragg reflections due to the coupling of different polarization modes can occur besides ordinary "intramode" Bragg reflections, and corresponding frequency gaps are classified according to the types of Bragg reflection. We demonstrate the difference between localized modes generated in different types of frequency gaps in superlattices with inhomogeneity. In particular, we show for a superlattice with a free surface, a "perfect" resonant reflection associated with surface-localized modes is realized inside frequency gaps in which intermode Bragg reflections occur. This resonance can be interpreted as resonant tunneling through a symmetric double-barrier potential. |
| Rights: | Copyright © 2003 American Physical Society |
| Relation: | http://www.aps.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/5704 |
| 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: 水野 誠司
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