Display of tilt information of vibrating object in time average mode usinglateral shearing interferometry and interferometric grating

Authors
Prakash, S Singh, IP Shakher, C
Citation
S. Prakash et al., Display of tilt information of vibrating object in time average mode usinglateral shearing interferometry and interferometric grating, OPT LASER T, 33(2), 2001, pp. 117-120
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS AND LASER TECHNOLOGY
ISSN journal
00303992 → ACNP
Volume
33
Issue
2
Year of publication
2001
Pages
117 - 120
Database
ISI
SICI code
0030-3992(200103)33:2<117:DOTIOV>2.0.ZU;2-O
Abstract
We have experimentally demonstrated vibration analysis of a reflecting obje ct in time-average mode using shearing interferometry and interferometric g rating. Experimental results show that time-average moire fringes, formed b etween fringe pattern reflected from object and sinusoidal grating are modu lated spatially by the amplitude of vibrating tilt. From the experimental r esults, information regarding tilt of vibrating objects can be determined. (C) 2001 Elsevier Science Ltd. All rights reserved.