Coherent backscattering of an elastic wave in a chaotic cavity

被引：57

作者：

de Rosny, J ^{[1
]}

Tourin, A ^{[1
]}

Fink, M ^{[1
]}

机构：

[1] Univ Paris 07, UMR 7587, Lab Ondes & Acoust, Ecole Super Phys & Chim Ind Ville Paris, F-75005 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.84.1693

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first experimental evidence of coherent backscattering enhancement for transient elastic waves propagating in a two-dimensional chaotic cavity. The time-integrated squared amplitude at the point source is twice as large as at the other points around the source. Contrary to analogous optical experiments, this effect is already clearly observable on a single realization. Especially, the spatial shape of the coherent backscattering enhancement is well predicted by a generalization of the existing theory.

引用

页码：1693 / 1695

页数：3

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