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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 4 — Feb. 1, 2008
  • pp: A13–A20

Speckle in the 4F optical system

Nien-An Chang and Nicholas George  »View Author Affiliations

Applied Optics, Vol. 47, Issue 4, pp. A13-A20 (2008)

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We provide a comprehensive analysis of the space and wavelength dependence of speckle generated by a thin diffuser and imaged by a 4F optical system. The use of this space-invariant system is shown to lead to the well-known features of speckle patterns in an analytically simple and elegant manner, thereby providing a clear insight into speckle in an optical configuration that includes the Fresnel zone, the optical Fourier transform plane, and the image plane. In our analysis we assume a white-noise diffuser. The spatial variation mainly depends on the imaging system, whereas the wavelength dependence is related to diffuser heights. Motion dynamics of speckle are also included.

© 2008 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.6150) Imaging systems : Speckle imaging

Original Manuscript: April 23, 2007
Revised Manuscript: July 24, 2007
Manuscript Accepted: August 1, 2007
Published: September 18, 2007

Nien-An Chang and Nicholas George, "Speckle in the 4F optical system," Appl. Opt. 47, A13-A20 (2008)

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