Vortex analysis in dynamic speckle images

被引：20
|
作者：
Sendra, Gonzalo H. [1 ,2 ,3 ]
Rabal, Hector J. [1 ,2 ]
Arizaga, Ricardo [1 ,2 ]
Trivi, Marcelo [1 ,2 ]
机构：
[1] Univ Nacl La Plata, Ctr Invest Opt CONICET La Plata CIC, RA-1897 La Plata, Argentina
[2] Univ Nacl La Plata, Fac Ingn, Area Ciencias Basicas, UID Optimo, RA-1897 La Plata, Argentina
[3] Univ Nacl Mar del Plata, Fac Ingn, Lab Laser, RA-7600 Mar Del Plata, Argentina
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2009年 / 26卷 / 12期
关键词：
PHASE SINGULARITIES; METROLOGY;
D O I：
10.1364/JOSAA.26.002634
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Optical vortex analysis has become an important tool in optical metrology. It has been shown to be able to measure small displacements with up to nanometric precision. We analyze optical vortex behavior in dynamic speckle patterns with the boiling phenomenon. We first study translational patterns with boiling and we find the limitations of the optical vortex metrology. Pure boiling patterns are also evaluated and we find a quantitative descriptor for the activity. We also observe that vortices exhibit a Brownian motion in pure boiling patterns. Numerical and experimental results are shown. (C) 2009 Optical Society of America
引用
收藏
页码：2634 / 2639
页数：6
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