Phase-shifting whole-field speckle photography technique for the measurement of in-plane deformations in real time

被引：4

作者：

Mohan, NK ^{[1
]}

Rastogi, P

机构：

[1] Indian Inst Technol, Dept Phys, Appl Opt Lab, Madras 600036, Tamil Nadu, India

[2] Swiss Fed Inst Technol, Appl Comp & Mech Lab, IMAC, CH-1015 Lausanne, Switzerland

来源：

OPTICS LETTERS | 2002年 / 27卷 / 08期

关键词：

D O I：

10.1364/OL.27.000565

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new real-time phase-shifting readout system is developed for quantitative evaluation of full-field correlation fringes obtained by means of Fourier filtering in speckle photography. The proposed method, which uses photorefractive crystals as the recording medium, is capable of mapping the whole-field displacement data from the recorded phase-shifted fringe patterns. Experimental results are presented on a diffuse surface subjected to rotation in its own plane. (C) 2002 Optical Society of America.

引用

页码：565 / 567

页数：3

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