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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 70, Iss. 7 — Jul. 1, 1980
  • pp: 827–834

Dynamic statistical properties of laser speckle due to longitudinal motion of a diffuse object under Gaussian beam illumination

N. Takai, Sutanto, and T. Asakura  »View Author Affiliations


JOSA, Vol. 70, Issue 7, pp. 827-834 (1980)
http://dx.doi.org/10.1364/JOSA.70.000827


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Abstract

The dynamic statistical properties of laser speckle produced in the far-field diffraction region from a diffuse object moving longitudinally along the optical axis under illumination of a Gaussian beam are investigated theoretically and experimentally. Although the spatial structure of speckle patterns varies in time owing to the longitudinal motion of the object, the time-varying speckle intensity detected at the center of the far-field diffraction plane is found to follow a statistically stationary variation. The autocorrelation function and power spectral density of the speckle intensity variations are studied with relation to the illuminating condition of the Gaussian beam.

© 1980 Optical Society of America

Citation
N. Takai, Sutanto, and T. Asakura, "Dynamic statistical properties of laser speckle due to longitudinal motion of a diffuse object under Gaussian beam illumination," J. Opt. Soc. Am. 70, 827-834 (1980)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-70-7-827

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