Extraordinary acoustic transmission through a 1D grating with very narrow apertures

被引：260

作者：

Lu, Ming-Hui ^{[1
]}

Liu, Xiao-Kang

Feng, Liang

Li, Jian

Huang, Cheng-Ping

Chen, Yan-Feng

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210093, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.99.174301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recently, there has been an increased interest in studying extraordinary optical transmission (EOT) through subwavelength aperture arrays perforated in a metallic film. In this Letter, we report that the transmission of an incident acoustic wave through a one-dimensional acoustic grating can also be drastically enhanced. This extraordinary acoustic transmission (EAT) has been investigated both theoretically and experimentally, showing that the coupling between the diffractive wave and the wave-guide mode plays an important role in EAT. This phenomenon can have potential applications in acoustics and also might provide a better understanding of EOT in optical subwavelength systems.

引用

页数：4

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