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Surface acoustic waves in two-dimensional periodic elastic structures

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タイトル: Surface acoustic waves in two-dimensional periodic elastic structures
著者: Tanaka, Yukihiro 著作を一覧する
Tamura, Shin-ichiro 著作を一覧する
発行日: 1998年 9月
出版者: American Physical Society
巻: 58
号: 12
開始ページ: 7958
終了ページ: 7965
出版社 DOI: 10.1103/PhysRevB.58.7958
抄録: Acoustic waves localized at the surface of two-dimensional (2D) periodic elastic structures, or 2D phononic crystals, are studied theoretically by taking account of the elastic anisotropy of constituent materials. The surface considered is perpendicular to the axis of a periodic array of cylinders embedded in a background material. The dispersion relations of the surface modes are calculated for circular cylinders of AlAs which form a square lattice in a GaAs matrix. The folding and anisotropy of the surface wave branches, as well as the existence of pseudosurface waves, are found. The stop band distributions of the surface, pseudosurface, and bulk waves are plotted in a form relevant for comparison with ultrasound imaging experiments.
Rights: Copyright © 1998 American Physical Society
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 田中 之博


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