Enhanced acoustical transmission and beaming effect through a single aperture

被引：70

作者：

Christensen, J. ^{[1
]}

Martin-Moreno, L. ^{[2
,3
]}

Garcia-Vidal, F. J. ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain

[2] Univ Zaragoza, CSIC, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[3] Univ Zaragoza, CSIC, ICMA, E-50009 Zaragoza, Spain

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 17期

关键词：

SURFACE-WAVES; PLASMONS; LIGHT;

D O I：

10.1103/PhysRevB.81.174104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we explore from a fundamental theoretical point of view, transmission phenomena of acoustic waves transferred through a single subwavelength slit milled into a sound-hard plate that is textured by surface corrugations. It is shown that the enhanced acoustical transmission unambiguously is linked to the excitation of acoustic surface waves and Fabry-Perot modes within the aperture. With the former resonant condition, we give a prescription on how these surface waves are induced and connected to the formation of a collimated sound beam in the far field.

引用

页数：6

共 20 条

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