Air-coupled laser vibrometry: analysis and applications

被引：25

作者：

Solodov, Igor ^{[1
]}

Doering, Daniel ^{[1
]}

Busse, Gerd ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Polymer Technol, Dept Nondestruct Testing, D-70569 Stuttgart, Germany

来源：

APPLIED OPTICS | 2009年 / 48卷 / 07期

关键词：

D O I：

10.1364/AO.48.000C33

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Acousto-optic interaction between a narrow laser beam and acoustic waves in air is analyzed theoretically. The photoelastic relation in air is used to derive the phase modulation of laser light in air-coupled reflection vibrometry induced by angular spatial spectral components comprising the acoustic beam. Maximum interaction was found for the zero spatial acoustic component propagating normal to the laser beam. The angular dependence of the imaging efficiency is determined for the axial and non-axial acoustic components with the regard for the laser beam steering in the scanning mode. The sensitivity of air-coupled vibrometry is compared with conventional "Doppler" reflection vibrometry Applications of the methodology for visualization of linear and nonlinear air-coupled fields are demonstrated. (C) 2008 Optical Society of America

引用

页码：C33 / C37

页数：5

共 9 条

[1] ACOUSTOOPTIC INTERACTION IN GASES AND LIQUID BASES IN THE FAR INFRARED [J].