SPECKLE PHOTOGRAPHY WITH BATIO3 CRYSTAL FOR THE MEASUREMENT OF INPLANE DISPLACEMENT FIELD DISTRIBUTION OF DISTANT OBJECTS

Authors
MOHAN NK DARLIN JS ARA MHM KOTHIYAL MP SIROHI RS
Citation
Nk. Mohan et al., SPECKLE PHOTOGRAPHY WITH BATIO3 CRYSTAL FOR THE MEASUREMENT OF INPLANE DISPLACEMENT FIELD DISTRIBUTION OF DISTANT OBJECTS, Optics and lasers in engineering, 29(2-3), 1998, pp. 211-216
Citations number
8
Categorie Soggetti
Optics
Journal title
Optics and lasers in engineering → ACNP
ISSN journal
01438166
Volume
29
Issue
2-3
Year of publication
1998
Pages
211 - 216
Database
ISI
SICI code
0143-8166(1998)29:2-3<211:SPWBCF>2.0.ZU;2-O
Abstract
A two-beam coupling configuration using a BaTiO3 crystal as recording medium for real-time displacement measurement of distant objects using a high coherent source such as frequency-doubled diode-pumped Nd: YAG laser is presented in this paper. Long coherence length of the laser permits to study the objects which are far away from the BaTiO3 crysta l. The requirement however, is that both the objects and the recording stage should be vibration isolated, and influence of intervening medi um must be negligible. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.