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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. 27, Iss. 10 — Oct. 1, 2010
  • pp: 2138–2143

Evolution of the scintillation index and the optical vortex density in speckle fields after removal of the least-squares phase

Mingzhou Chen and Filippus S. Roux  »View Author Affiliations


JOSA A, Vol. 27, Issue 10, pp. 2138-2143 (2010)
http://dx.doi.org/10.1364/JOSAA.27.002138


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Abstract

Knowledge of the behavior of stochastic optical fields can aid the understanding of the scintillation of light propagating through a turbulent medium. For this purpose, we perform a numerical investigation of the evolution of the scintillation index and the optical vortex density in a speckle field after removing its continuous phase. We find that both the scintillation index and the vortex density initially drop and then increase again to reach an equilibrium level. It is also found that the initial rate of decrease in both cases is 1 order of magnitude faster than the eventual rate of increase. Their detail shapes are however different. Therefore different empirical functions are used to fit the shapes of these curves.

© 2010 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(350.5030) Other areas of optics : Phase
(350.5500) Other areas of optics : Propagation
(260.6042) Physical optics : Singular optics

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: June 29, 2010
Manuscript Accepted: August 5, 2010
Published: September 8, 2010

Citation
Mingzhou Chen and Filippus S. Roux, "Evolution of the scintillation index and the optical vortex density in speckle fields after removal of the least-squares phase," J. Opt. Soc. Am. A 27, 2138-2143 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-10-2138

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