Multi-scale characterization of laser speckle patterns

The interaction between coherent monochromatic radiation and scattering medium results in a speckle phenomenon. The purpose of this paper is to present a stochastic approach to characterizing speckle patterns, using the differential equation that formalizes Brownian motion. This stochastic approach...

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Bibliographic Details
Published in:Optics and laser technology 2007-02, Vol.39 (1), p.40-45
Main Authors: Péron, Marie-Cécile, Guyot, Steve, Deléchelle, Eric
Format: Article
Language:English
Subjects:
Brownian motion theory
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Imaging and optical processing
Optics
Ornstein–Ulhenbeck process
Physics
Speckle
Speckle and moire patterns
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Summary:The interaction between coherent monochromatic radiation and scattering medium results in a speckle phenomenon. The purpose of this paper is to present a stochastic approach to characterizing speckle patterns, using the differential equation that formalizes Brownian motion. This stochastic approach is based on a differential method for the approximation of diffusion. This method is validated by the characterization of solutions of latex balls of various concentrations.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2005.05.019