Backscattered speckle size as a function of polarization: influence of particle-size and- concentration
Author(s) -
Y. Piederrière,
F. Boulvert,
Christophe Cariou,
Bernard Le Jeune,
Y. Guern,
Guy Le Brun
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.005030
Subject(s) - speckle pattern , optics , scattering , materials science , particle size , polarization (electrochemistry) , light scattering , anisotropy , mie scattering , dispersity , physics , chemistry , polymer chemistry
This report about backscattering measure-ments of the speckle produced by strongly-scattering liquid media shows that the size of the backscattered speckle depends on scattering and anisotropy coefficients. These measurements were aimed at assessing the effects of polarization characteristics of the incident laser beam and of the scattered light on speckle size. The samples under study consisted of monodisperse polystyrene microspheres in solutions, mixtures of different sized-microspheres, milk, blood and pig skin. Such measurements of speckle size in polarization give information on strongly scattering media, allow their discrimination and enable one to characterize the undergone changes.
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