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.
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页数：6
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