DSpace
 

EPrints@IIT Delhi >
Faculty Research Publicatons  >
Physics >

Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/817

Full metadata record

DC FieldValueLanguage
dc.contributor.authorDharmsaktu, K S-
dc.contributor.authorArvind Kumar-
dc.contributor.authorTripathi, Renu-
dc.contributor.authorSingh, K-
dc.date.accessioned2005-09-12T05:52:49Z-
dc.date.available2005-09-12T05:52:49Z-
dc.date.issued2000-
dc.identifier.citationOptics and Lasers in Engineering, 34(3), 191-202en
dc.identifier.urihttp://eprint.iitd.ac.in/dspace/handle/2074/817-
dc.description.abstractA technique has been proposed to analyze small in-plane component of vibrations by measuring the fringe shift, and analysing the correlation output of captured vibrating Young's fringes with a photorefractive correlator. Fringes are formed due to interference between the reconstructed speckled beam recorded for stationary object beam, and vibrated speckled beam transmitting through a BaTiO 3 crystal after introducing a small shift in the di!user position. The correlation peak intensity is a!ected due to mismatch of vibrations between two piezomirrors in the object beam. High correlation output gives an indication of the frequency matching of known reference and unknown vibrations, thus giving information on the frequency of vibration. Vibration amplitudes of the order of a wavelength of light have been measured by counting the number of fringes passing past a line in the observation plane.en
dc.format.extent592902 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.subjectSpeckle metrologyen
dc.subjectYoung's fringesen
dc.subjectPhotorefractive correlatoren
dc.titleMeasurement of vibration with Young's fringe modulated speckle patterns in a photorefractive correlatoren
dc.typeArticleen
Appears in Collections:Physics

Files in This Item:

File Description SizeFormat
dharamsaktumea2000.pdf579.01 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback