Acoustic time reversal with mode conversion at a solid-fluid interface

被引：14

作者：

Draeger, C ^{[1
]}

Cassereau, D ^{[1
]}

Fink, M ^{[1
]}

机构：

[1] Univ Paris 07, Ecole Super Phys & Chim Ind Ville Paris, URA CNRS 1503, Lab Ondes & Acoust, F-75005 Paris, France

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 13期

关键词：

D O I：

10.1063/1.121117

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Acoustic time-reversal experiments are mostly carried out in fluid media. This letter presents experiments proving the capability of a time-reversal mirror to obtain simultaneous focusing of both propagation modes inside a solid. The mirror is located in a surrounding fluid and records the longitudinal and transverse wavefronts (created by a laser impact on the solid) after conversion into pressure waves at the solid-fluid interface. We show that the time-reversed pressure wavefronts are reconverted mostly to their original propagation mode and focus simultaneously at the location of the laser impact. (C) 1998 American Institute of Physics.

引用

页码：1567 / 1569

页数：3

共 5 条

[1]

[Anonymous], 1990, LASER ULTRASONICS

[2]

DDRAEGER C, 1997, J ACOUST SOC AM, V102, P1289

[3] Time reversed acoustics [J].