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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 18 — Sep. 15, 2008
  • pp: 2041–2043

Interferometric evaluation of angular displacements using phase retrieval

Percival F. Almoro, Giancarlo Pedrini, Arun Anand, Wolfgang Osten, and Steen G. Hanson  »View Author Affiliations


Optics Letters, Vol. 33, Issue 18, pp. 2041-2043 (2008)
http://dx.doi.org/10.1364/OL.33.002041


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Abstract

Phase retrieval is carried out using sequential intensity measurements of a volume speckle field and a wave propagation equation. Retrieved phases and phase subtraction facilitate the analysis of wavefronts before and after undergoing a small rotation. Angular displacement between incident planar wavefronts is determined from the unwrapped phase difference, phase diffuser aperture diameter, and the light source wavelength. Numerical simulations confirm the experimental results.

© 2008 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(030.6140) Coherence and statistical optics : Speckle
(050.1960) Diffraction and gratings : Diffraction theory
(100.3010) Image processing : Image reconstruction techniques
(100.5070) Image processing : Phase retrieval
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Image Processing

History
Original Manuscript: May 16, 2008
Revised Manuscript: July 22, 2008
Manuscript Accepted: July 24, 2008
Published: September 4, 2008

Citation
Percival F. Almoro, Giancarlo Pedrini, Arun Anand, Wolfgang Osten, and Steen G. Hanson, "Interferometric evaluation of angular displacements using phase retrieval," Opt. Lett. 33, 2041-2043 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-18-2041


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References

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