Comparison of discrete ordinate and Monte Carlo simulations of polarized radiative transfer in two coupled slabs with different refractive indices

D. Cohen, S. Stamnes, T. Tanikawa, E. R. Sommersten, J. J. Stamnes, J. K. Lotsberg, Knut Stamnes

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A comparison is presented of two different methods for polarized radiative transfer in coupled media consisting of two adjacent slabs with different refractive indices, each slab being a stratified medium with no change in optical properties except in the direction of stratification. One of the methods is based on solving the integro-differential radiative transfer equation for the two coupled slabs using the discrete ordinate approximation. The other method is based on probabilistic and statistical concepts and simulates the propagation of polarized light using the Monte Carlo approach. The emphasis is on non-Rayleigh scattering for particles in the Mie regime. Comparisons with benchmark results available for a slab with constant refractive index show that both methods reproduce these benchmark results when the refractive index is set to be the same in the two slabs. Computed results for test cases with coupling (different refractive indices in the two slabs) show that the two methods produce essentially identical results for identical input in terms of absorption and scattering coefficients and scattering phase matrices.

Original languageEnglish (US)
Pages (from-to)9592-9614
Number of pages23
JournalOptics Express
Volume21
Issue number8
DOIs
StatePublished - Apr 22 2013

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radiative transfer
slabs
refractivity
simulation
scattering coefficients
stratification
scattering
polarized light
absorptivity
optical properties
propagation
matrices
approximation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Cohen, D. ; Stamnes, S. ; Tanikawa, T. ; Sommersten, E. R. ; Stamnes, J. J. ; Lotsberg, J. K. ; Stamnes, Knut. / Comparison of discrete ordinate and Monte Carlo simulations of polarized radiative transfer in two coupled slabs with different refractive indices. In: Optics Express. 2013 ; Vol. 21, No. 8. pp. 9592-9614.
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Comparison of discrete ordinate and Monte Carlo simulations of polarized radiative transfer in two coupled slabs with different refractive indices. / Cohen, D.; Stamnes, S.; Tanikawa, T.; Sommersten, E. R.; Stamnes, J. J.; Lotsberg, J. K.; Stamnes, Knut.

In: Optics Express, Vol. 21, No. 8, 22.04.2013, p. 9592-9614.

Research output: Contribution to journalArticle

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