Acoustic tunneling through artificial structures: From phononic crystals to acoustic metamaterials

作者:Peng Pai; Qiu Chunyin*; Ding Yiqun; He Zhaojian; Yang Hai; Liu Zhengyou
来源:Solid State Communications, 2011, 151(5): 400-403.
DOI:10.1016/j.ssc.2010.12.008

摘要

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.