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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 5 — Mar. 2, 2009
  • pp: 3084–3100

Effect of optical aberration on Gaussian laser speckle

Dongyel Kang, Eric Clarkson, and Tom D. Milster  »View Author Affiliations

Optics Express, Vol. 17, Issue 5, pp. 3084-3100 (2009)

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Optical aberration effects up to the second moment of Gaussian laser speckle are theoretically investigated for both partially and fully developed speckle. In the development, a plane-wave illuminated diffuser generates a phase-perturbed random field in the object plane that creates speckle in the image plane. Theoretical derivations show that image field statistics are generally non-circular Gaussian due to aberrations. Speckle statistics are not affected by odd-functional aberrations, such as coma, and dependency of aberrations is asymptotically ignorable for very weak or strong diffusers. Furthermore, Gaussian speckle contrast as a functional of optical aberrations exhibits a stationary point for the aberration free condition, where apparently contrast does not achieve a local maximum. Calculations of speckle contrast for several aberration conditions are also presented.

© 2009 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(110.6150) Imaging systems : Speckle imaging
(290.5880) Scattering : Scattering, rough surfaces

ToC Category:
Coherence and Statistical Optics

Original Manuscript: December 9, 2008
Revised Manuscript: January 28, 2009
Manuscript Accepted: February 6, 2009
Published: February 17, 2009

Dongyel Kang, Eric Clarkson, and Tom D. Milster, "Effect of optical aberration on Gaussian laser speckle," Opt. Express 17, 3084-3100 (2009)

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