Multiple scattering of polarized light in a turbid medium |
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Authors: | E. E. Gorodnichev A. I. Kuzovlev D. B. Rogozkin |
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Affiliation: | (1) Moscow Engineering Physics Institute, State University, Moscow, 115409, Russia |
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Abstract: | It is shown that multiple scattering of polarized light in a turbid medium can be represented as independent propagation of three basic modes: intensity and linearly and circularly polarized modes. Weak interaction between the basic modes can be described by perturbation theory and gives rise to “overtones” (additional polarization modes). Transport equations for the basic and additional modes are derived from a vector radiative transfer equation. Analytical solutions to these equations are found in the practically important cases of diffusive light propagation and small-angle multiple scattering. The results obtained are in good agreement with experimental and numerical results and provide an explanation for the experimentally observed difference in depolarization between linearly and circularly polarized waves. |
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