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Applied Optics

Applied Optics


  • Vol. 22, Iss. 1 — Jan. 1, 1983
  • pp: 170–177

Correlation distance of dynamic speckles

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

Applied Optics, Vol. 22, Issue 1, pp. 170-177 (1983)

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The translational and boiling motions of dynamic speckles produced in the Fresnel diffraction field under illumination of a Gaussian beam are investigated in detail. The speckle motion is analyzed from the space–time cross-correlation function of speckle intensity fluctuations detected at the two points in the receiving plane. The correlation distance of time-varying speckles is compared with the translation distance of the spatial speckle pattern. The optical conditions for the translational and boiling motions of dynamic speckles are examined and expressed in a diagram. The characteristics for the correlation distance of time-varying speckle intensity fluctuations are finally verified by several experiments.

© 1983 Optical Society of America

Original Manuscript: July 12, 1982
Published: January 1, 1983

N. Takai, T. Iwai, and T. Asakura, "Correlation distance of dynamic speckles," Appl. Opt. 22, 170-177 (1983)

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