Extraordinary acoustic shielding by a monolayer of periodical polymethyl methacrylate cylinders immersed in water

Shasha Peng, Chunyin Qiu, Zhaojian He, Yangtao Ye, Shengjun Xu, Kun Tang, Manzhu Ke, Zhengyou Liu

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17 Scopus citations

Abstract

We study, both experimentally and numerically, the acoustic transmission through a monolayer of periodical polymethyl methacrylate cylinders immersed in water. Beyond our expectation, nearly-total reflection is observed for the system, consisting of two ingredients with low impedance contrast. Our investigation manifests that this extraordinary acoustic shielding mostly stems from the resonant excitation of the localized Stoneley surface waves in individual cylinders. Such local modes are rooted in the complicated coupling between the longitudinal and transverse waves and are unique in acoustic systems.

Original languageEnglish
Article number014509
JournalJournal of Applied Physics
Volume110
Issue number1
DOIs
StatePublished - 1 Jul 2011
Externally publishedYes

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China (Grant Nos. 10874131, J0830310, 10944003, and 10974147) and Hubei Provincial Natural Science Foundation of China (Grant No. 2009CDA151).

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