Acoustic tunneling through artificial structures: From phononic crystals to acoustic metamaterials |
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| Authors: | Pai Peng Yiqun Ding Hai Yang |
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| Institution: | a Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, Chinab Physics Department, Yunnan Normal University, 650092, Kunming, China |
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| Abstract: | We present a comparative study on the acoustic tunneling through artificial periodical composites, from phononic crystals to acoustic metamaterials. We find that the features of the acoustic tunneling are closely related with the origins of band gaps. In particular, the band gap associated with the negative effective material parameter in the metamaterial results in a better analog of the tunneling effect to the quantum system. |
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| Keywords: | A Acoustic metamaterial A Sonic crystal D Tunneling |
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