A Bessel beam laser Doppler velocimeter

被引：8

作者：

Voigt, Andreas ^{[1
]}

Heitkam, Sascha ^{[1
]}

Buettner, Lars ^{[1
]}

Czarske, Juergen ^{[1
]}

机构：

[1] Tech Univ Dresden, Dept Elect Engn & Informat Technol, Lab Measuring & Testing Tech, D-01069 Dresden, Germany

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 09期

关键词：

Laser doppler velocimetry; Bessel beam; LIGHT-BEAM; SPATIAL-RESOLUTION; BOUNDARY-LAYER; MICROMANIPULATION; SENSOR; AXICON;

D O I：

10.1016/j.optcom.2009.01.044

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a laser Doppler velocimeter that is based on the use of two intersecting Bessel beams instead of the conventionally used Gaussian beams. Due to the quasi non-divergent nature of the Bessel beams, a short effective measurement volume of about 40 mu m length could be realized with a low fringe spacing variation of 0.3%. Both of these advantageous values were experimentally verified in flow measurements. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1874 / 1878

页数：5

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