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Proceedings Paper

Correlation dimension of speckle patterns for fractal-like scatterers
Author(s): Dmitry A. Zimnyakov; Valery V. Tuchin; Alexey A. Mishin; Kirill V. Larin
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Paper Abstract

Various methods of coherent optical quantification of the structure functions of the boundary field phase distributions in the case of fractal-like scattering objects are considered: (1) by using the analysis of the angular dependence of scattered light mean intensity; (2) by estimating the parameters of the structure function of the far-field intensity fluctuations of scattered light. It has been shown in the second case that the equality of the correlation exponents of the boundary field phase and of the far-field intensity takes place if scattering objects with the Gaussian phase statistics are illuminated by a collimated beam and a great number of statistically independent elementary scatterers within illuminated area is provided. Experiments with rough glass plates illuminated by the Gaussian beams have shown that the values of the correlation exponents of the boundary field phase fluctuations (which have been obtained by means of microinterferometric measurements) are in satisfactory agreement with the corresponding values of the far-field speckle intensity.

Paper Details

Date Published: 10 June 1997
PDF: 7 pages
Proc. SPIE 3177, CIS Selected Papers Nonlinear Dynamics of Laser and Optical Systems, (10 June 1997); doi: 10.1117/12.276185
Show Author Affiliations
Dmitry A. Zimnyakov, Saratov State Univ. (Russia)
Valery V. Tuchin, Saratov State Univ. (Russia)
Alexey A. Mishin, Saratov State Univ. (Russia)
Kirill V. Larin, Saratov State Univ. (Russia)


Published in SPIE Proceedings Vol. 3177:
CIS Selected Papers Nonlinear Dynamics of Laser and Optical Systems
Valery V. Tuchin, Editor(s)

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