ID | 17829 |
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Sort Key | 3
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フルテキストURL | |
著者 |
Kurose Tomoyuki
Graduate School of Natural Science and Technology Okayama University
鶴田 健二
Graduate School of Natural Science and Technology Okayama University
ORCID
Kaken ID
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東辻 千枝子
Graduate School of Natural Science and Technology Okayama University
東辻 浩夫
Graduate School of Natural Science and Technology Okayama University
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抄録 | The finite-difference time-domain (FDTD) method has been applied to the calculation of the phonon band structure of two-dimensional (2D) phononic crystals, consisting of metal cylinders placed periodically in liquid. By comparing several combinations of materials for metal cylinder and liquid, we analyze the dependence of the band structures on sound speed and density of liquid media. Moreover, the negative refraction of the acoustic waves is observed at the interfaces between phononic crystal slab and the liquid. We find that an acoustic“lens effect”with the slab appears due to the negative refractions. The relationship between the focal intensity in the lens effect and the band structure is discussed.
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出版物タイトル |
Memoirs of the Faculty of Engineering, Okayama University
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発行日 | 2009-01
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巻 | 43巻
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出版者 | Faculty of Engineering, Okayama University
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出版者(別表記) | 岡山大学工学部
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開始ページ | 16
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終了ページ | 21
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ISSN | 1349-6115
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NCID | AA12014085
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資料タイプ |
紀要論文
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OAI-PMH Set |
岡山大学
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言語 |
英語
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論文のバージョン | publisher
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NAID | |
Eprints Journal Name | mfe
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