Surface resonant-states-enhanced acoustic wave tunneling in two-dimensional phononic crystals

被引：29

作者：

Ke, Manzhu ^{[1
]}

He, Zhaojian

Peng, Shasha

Liu, Zhengyou

Shi, Jing

Wen, Weijia

Sheng, Ping

机构：

[1] Wuhan Univ, Minist Educ, Key Lab Acoust & Photon Mat & Devices, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China

[3] Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.99.044301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that by placing a metal plate next to a two-dimensional phononic crystal, acoustic waves can tunnel through the combined structure at a specific frequency that lies inside the band gap of the phononic crystal. The enhanced transmission is attributed to the coupling of the input waves with the acoustically resonant states created between the metal plate and the phononic crystal. Experiments are in excellent agreement with the theoretical predictions.

引用

页数：4

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