A tunable acoustic filter using disordered systems

Nishiguchi, Norihiko; Yoshihiro, Tatsuya

Japanese Journal of Applied Physics, 2021, 60(7), 072004

Permalink : https://hdl.handle.net/2115/85953

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アクセス権
open access
URI
https://hdl.handle.net/2115/85953
タイトル
A tunable acoustic filter using disordered systems
著者
e-Rad_Researcher
40175518
著者名
Nishiguchi, Norihiko
著者名
Yoshihiro, Tatsuya
言語
英語
発行日
2021-06-18
出版者
IOP Publishing
収録物名
Japanese Journal of Applied Physics
巻(号)
60(7)
ページ
072004
抄録
We propose a tunable acoustic filter using superlattices constructed by random stacking of solid and fluid layers. Acoustic waves are localized in the random superlattices (RSLs) and the transmission rates substantially decay to 0 except for the resonance transmissions where the acoustic waves are delocalized. The transmission rates become unity for the resonance transmissions. The resonance frequencies depend on the layer thicknesses, and we can modulate the transmission spectra from transparent to opaque, and vice versa, modifying the layer thicknesses. We numerically illustrate the changes in the transport properties for the aluminum/water RSLs, and suggest to exploit the RSLs for the tunable acoustic filters.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報
© 2021 The Japan Society of Applied Physics
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/ac06b6
PISSN
0021-4922
EISSN
1347-4065
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.35848/1347-4065/ac06b6