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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 30, Iss. 3 — Mar. 1, 2013
  • pp: 462–469

In-plane displacement measurement in vortex metrology by synthetic network correlation fringes

Luciano Angel-Toro, Daniel Sierra-Sosa, Myrian Tebaldi, and Néstor Bolognini  »View Author Affiliations


JOSA A, Vol. 30, Issue 3, pp. 462-469 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000462


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Abstract

Recently we proposed an alternative method of displacement analysis in vortex metrology, based on the application of the Fourier optics techniques, that is suitable for an intermediate range of displacement measurements ranging below the resolution of speckle photography and above that of the conventional vortex metrology. However, for smaller displacements, we introduce an approach to perform the Fourier analysis from vortex networks. In this work, we present an enhanced method for measuring uniform in-plane displacements, taking advantage of the capability of determining the subpixel locations of vortices and having the ability to track the homologous vortices onto a plane. It is shown that high-quality fringe systems can be synthesized and analyzed to accurately measure in an extended range of displacements and for highly decorrelated speckle patterns. Experimental results supporting the validity of the method are presented and discussed.

© 2013 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: October 10, 2012
Revised Manuscript: January 17, 2013
Manuscript Accepted: January 17, 2013
Published: February 21, 2013

Citation
Luciano Angel-Toro, Daniel Sierra-Sosa, Myrian Tebaldi, and Néstor Bolognini, "In-plane displacement measurement in vortex metrology by synthetic network correlation fringes," J. Opt. Soc. Am. A 30, 462-469 (2013)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-30-3-462

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