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Proceedings Paper

Scattering media diagnostics with the use of analysis of dynamic speckle: some manifestations of the scattered light pathlength distributions
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Paper Abstract

Analysis of multiple interactions of probe light with moving scattering particles indicates the manner in which scattering occurs. The study of statistical properties of Doppler shifted components of scattered light allows one to diagnose the structure and dynamic properties of scattering medium. In this paper, we consider an influence of the statistical properties of pathlength distributions that characterize the probe light transfer in scattering medium on analyzed dynamic speckle patterns. The convenient way to analyze dynamic speckle and to obtain in such manner the information about dynamic properties of scattering medium is to apply the contrast analysis of time-averaged speckle images known as Laser Speckle Contrast Analysis (LASCA) technique. Possibility to analyze the non-stationary layered media with use of the LASCA technique is discussed. Some manifestations of the statistical properties of the pathlength distributions of scattered field partial components in Doppler shift frequency distributions for these components are studied with use of the Monte-Carlo simulation.

Paper Details

Date Published: 31 May 2002
PDF: 9 pages
Proc. SPIE 4705, Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II, (31 May 2002); doi: 10.1117/12.469016
Show Author Affiliations
Maria M. Gonik, Saratov State Univ. (Russia)
Liana V. Kuznetsova, Saratov State Univ. (Russia)
Dmitry A. Zimnyakov, Saratov State Univ. (Russia)

Published in SPIE Proceedings Vol. 4705:
Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II
Dmitry A. Zimnyakov, Editor(s)

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