Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/1861
Full metadata record
DC FieldValueLanguage
dc.contributor.authorVani, V. C-
dc.contributor.authorChatterjee, S-
dc.date.accessioned2007-10-08T09:18:39Z-
dc.date.available2007-10-08T09:18:39Z-
dc.date.issued2006-12-
dc.identifier.citationApplied Optics, Vol. 45, No. 35, pp. 8939 - 8944en
dc.identifier.urihttp://hdl.handle.net/2248/1861-
dc.descriptionRestricted Access-
dc.description.abstractWe address the problem of detecting periodic structures hidden behind roughness. We have shown that if r0 is the coherence length of the scattered radiation, due to the random part of the surface, and Lambda is the wavelength of the periodic part of the surface, then with a matched filtering method that we introduce, and by using simple computations with the intensity data, it is possible to detect the hidden first-order peak even when (r0/Lambda)˜0.11. Here we advance the method to bring out very weak second-order peaks, which we demonstrate for what we believe is the first time. The unmistakable presence of both the first- and second-order peaks, which have identical shapes as the zeroth-order peak, is strong evidence of the hidden periodicity and serves as a novel method for the detection of weak periodicities hidden behind strong randomness.en
dc.format.extent748330 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.relation.urihttp://ao.osa.org/abstract.cfm?id=119031en
dc.subjectDiffractionen
dc.subjectDiffraction gratingsen
dc.subjectFourier transformsen
dc.titleScattering of light by a periodic structure in the presence of randomness. V. Detection of successive peaks in a periodic structureen
dc.typeArticleen
Appears in Collections:IIAP Publications

Files in This Item:
File Description SizeFormat 
Scattering of light by a periodic structure
  Restricted Access
Restricted Access730.79 kBAdobe PDFView/Open Request a copy


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