Refractive acoustic devices for airborne sound -: art. no. 023902

被引：262

作者：

Cervera, F

Sanchis, L

Sánchez-Pérez, JV

Martínez-Sala, R

Rubio, C

Meseguer, F ^{[1
]}

López, C

Caballero, D

Sánchez-Dehesa, J

机构：

[1] Univ Politecn Valencia, Edificio Inst 2, CSIC, Unidad Asociada Invest,Ctr Tecnol Ondas, E-46022 Valencia, Spain

[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

[3] Univ Autonoma Madrid, Fac Ciencias C5, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.88.023902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that a sonic crystal made of periodic distributions of rigid cylinders in air acts as a new material which allows the construction of refractive acoustic devices for airborne sound. It is demonstrated that, in the long-wave regime, the crystal has low impedance and the sound is transmitted at subsonic velocities. Here, the fabrication and characterization of a convergent lens are presented. Also, an example of a Fabry-Perot interferometer based on this crystal is analyzed. It is concluded that refractive devices based on sonic crystals behave in a manner similar to that of optical systems.

引用

页数：4

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