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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 14 — May. 10, 2007
  • pp: 2676–2682

Multiple rotation assessment through isothetic fringes in speckle photography

Luciano Ángel, Myrian Tebaldi, and Néstor Bolognini  »View Author Affiliations

Applied Optics, Vol. 46, Issue 14, pp. 2676-2682 (2007)

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The use of different pupils for storing each speckled image in speckle photography is employed to determine multiple in-plane rotations. The method consists of recording a four-exposure specklegram where the rotations are done between exposures. This specklegram is then optically processed in a whole field approach rendering isothetic fringes, which give detailed information about the multiple rotations. It is experimentally demonstrated that the proposed arrangement permits the depiction of six isothetics in order to measure either six different angles or three nonparallel components for two local general in-plane displacements.

© 2007 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: September 8, 2006
Revised Manuscript: November 29, 2006
Manuscript Accepted: December 14, 2006
Published: April 23, 2007

Luciano Ángel, Myrian Tebaldi, and Néstor Bolognini, "Multiple rotation assessment through isothetic fringes in speckle photography," Appl. Opt. 46, 2676-2682 (2007)

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