Vortex metrology using Fourier analysis techniques: vortex networks correlation fringes

Vista sencilla de ítem
dc.citation.journalTitleApplied Opticseng
dc.contributor.authorÁngel Toro, Lucianospa
dc.contributor.authorSierra Sosa, Danielspa
dc.contributor.authorTebaldy, Myrianspa
dc.contributor.authorBolognini, Néstorspa
dc.contributor.authorÁngel Toro, Luciano
dc.contributor.authorSierra Sosa, Daniel
dc.contributor.authorTebaldy, Myrian
dc.contributor.authorBolognini, Néstor
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicasspa
dc.contributor.researchgroupÓptica Aplicadaspa
dc.date.accessioned2014-03-07T20:43:20Z
dc.date.available2014-03-07T20:43:20Z
dc.date.issued2012-10-19
dc.description.abstractIn this work, we introduce an alternativemethod of analysis in vortexmetrology based on the application of the Fourier optics techniques. The first part of the procedure is conducted as is usual in vortexmetrology for uniformin-plane displacement determination. On the basis of two recorded intensity speckled distributions, corresponding to two states of a diffuser coherently illuminated, we numerically generate an analytical signal fromeach recorded intensity pattern by using a version of the Riesz integral transform. Then, fromeach analytical signal, a two-dimensional pseudophase map is generated in which the vortices are located and characterized in terms of their topological charges and their core’s structural properties. The second part of the procedure allows obtaining Young’s interference fringes when Fourier transforming the light passing through a diffracting mask with multiple apertures at the locations of the homologous vortices. In fact, we use the Fourier transformas amathematical operation to compute the far-field diffraction intensity pattern corresponding to themultiaperture set. Each aperture fromthe set is associatedwith a rectangular hole that coincides both in shape and size with a pixel from recorded images.We show that the fringe analysis can be conducted as in speckle photography in an extended range of displacement measurements. Effects related with speckled decorrelation are also considered. Our experimental results agree with those of speckle photography in the range in which both techniques are applicable. © 2012 Optical Society of America OCIS codes: 050.4865, 030.6140.eng
dc.description.sponsorshipEAFIT universityspa
dc.identifier.citationLuciano Angel-Toro, Daniel Sierra-Sosa, Myrian Tebaldi, and Néstor Bolognini, "Vortex metrology using Fourier analysis techniques: vortex networks correlation fringes," Appl. Opt. 51, 7411-7419 (2012) http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-30-7411spa
dc.identifier.issn1559-128X
dc.identifier.urihttp://hdl.handle.net/10784/1366
dc.language.isoengeng
dc.publisherOSA
dc.publisher.departmentEscuela de Ciencias y Humanidadesspa
dc.publisher.programGrupo de Investigación de Óptica Aplicadaspa
dc.relation.ispartofApplied Optics, Vol. 51, Issue 30, pp. 7411-7419 (2012)eng
dc.relation.urihttp://dx.doi.org/10.1364/AO.51.007411
dc.rights.accessrightsinfo:eu-repo/semantics/openAccesseng
dc.rights.localAcceso abiertospa
dc.subject.keywordvortex metrologyeng
dc.subject.keywordFourier opticseng
dc.subject.keywordspeckleeng
dc.subject.keywordpseudophaseeng
dc.titleVortex metrology using Fourier analysis techniques: vortex networks correlation fringeseng
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

Archivos

Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
L_Angel-Toro_Applied_Optics.pdf
Tamaño:
1.27 MB
Formato:
Adobe Portable Document Format
Descripción:
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.07 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar

Colecciones

Artículos