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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. 9 — Sep. 1, 2012
  • pp: 1838–1840

Intensity fluctuations of flat-topped beam in non-Kolmogorov weak turbulence: comment

Mikhail Charnotskii  »View Author Affiliations


JOSA A, Vol. 29, Issue 9, pp. 1838-1840 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001838


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Abstract

In J. Opt. Soc. Am. A 29, 169 (2012), Gerçekcioğlu and Baykal presented an investigation of the dependence of the scintillation index of flat-topped Gaussian beams on the exponent α of the power-law-type spectra of non-Kolmogorov turbulence. In particular, they found that the scintillation index reaches a maximum at α3.2. We show that this conclusion is an artifact of their specific calculation, and depends on the choice of the length unit. Gerçekcioğlu and Baykal’s calculations are made for the 3<α<5 range of the spectral exponent. We show that for the homogeneous and isotropic turbulence the correct range is 3<α<4, when Markov approximation is used.

© 2012 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(010.7060) Atmospheric and oceanic optics : Turbulence
(030.7060) Coherence and statistical optics : Turbulence
(290.5930) Scattering : Scintillation

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: February 9, 2012
Revised Manuscript: April 19, 2012
Manuscript Accepted: April 30, 2012
Published: August 9, 2012

Citation
Mikhail Charnotskii, "Intensity fluctuations of flat-topped beam in non-Kolmogorov weak turbulence: comment," J. Opt. Soc. Am. A 29, 1838-1840 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-9-1838

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