ID | 65255 |
フルテキストURL | |
著者 |
Tsuruta, Kenji
Department of Electrical and Electronic Engineering, Okayama University
ORCID
Kaken ID
publons
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抄録 | This paper reviews recent progress in acoustic metasurfaces and the novel concept of "topological acoustic/phononics" for designing compact yet efficient acoustic devices. After a brief review of this research area and its impact on ultrasonic technologies, some of the efforts to develop highly efficient sound absorption devices using acoustic metasurfaces are introduced. A resonance-based mechanism to achieve efficient absorption in metasurface structures thinner than the wavelength of the incident sound is briefly discussed, and its extensions to a broad spectrum are highlighted. Next, a valley topological phononic system is introduced, and its applications to the design of phononic waveguides are exemplified. The band structure design for extracting topologically protected edge modes is shown together with a numerical and experimental demonstration of the robustness of phononic waveguides constructed in both acoustic and elastic regimes.
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備考 | This is the Accepted Manuscript version of an article accepted for publication in Japanese Journal of Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1347-4065/acc6da.
This fulltext file will be available in Apr. 2024.
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発行日 | 2023-04-27
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出版物タイトル |
Japanese Journal of Applied Physics
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巻 | 62巻
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号 | SJ号
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出版者 | IOP Publishing
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開始ページ | SJ0803
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ISSN | 0021-4922
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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著作権者 | © 2023 The Japan Society of Applied Physics
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論文のバージョン | author
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DOI | |
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関連URL | isVersionOf https://doi.org/10.35848/1347-4065/acc6da
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Citation | Kenji Tsuruta 2023 Jpn. J. Appl. Phys. 62 SJ0803
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助成機関名 |
Japan Society for the Promotion of Science
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助成番号 | JP21H05020
JP21K18877
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