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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. 29, Iss. 10 — Oct. 1, 2012
  • pp: 2074–2079

Speckle contrast for superposed speckle patterns created by rotating the orientation of laser polarization

Zhaomin Tong and Xuyuan Chen  »View Author Affiliations


JOSA A, Vol. 29, Issue 10, pp. 2074-2079 (2012)
http://dx.doi.org/10.1364/JOSAA.29.002074


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Abstract

For a rough diffuser that fully depolarizes a linearly polarized laser, the speckle contrast of a fully developed speckle image can be reduced from 1 to 0.5 by polarization diversity. This reduction is achieved by rotating an x-polarized laser to the y-polarized orientation to form four independent speckle patterns with equal intensities during the detector exposure time. For the case of arbitrary rotation of the polarization, we derived a generalized speckle contrast formula for the superposed speckle patterns. This formula completes the theory of speckle contrast for the sum of correlated speckle intensities as it relates to polarization diversity.

© 2012 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.1650) Imaging systems : Coherence imaging
(290.5855) Scattering : Scattering, polarization

ToC Category:
Scattering

History
Original Manuscript: May 24, 2012
Revised Manuscript: July 30, 2012
Manuscript Accepted: August 12, 2012
Published: September 7, 2012

Citation
Zhaomin Tong and Xuyuan Chen, "Speckle contrast for superposed speckle patterns created by rotating the orientation of laser polarization," J. Opt. Soc. Am. A 29, 2074-2079 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-10-2074


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References

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