Coherent backscattering effects for discrete random media : Numerical and theoretical results

Manifestation of the backscattering enhancement phenomenon in the reflection matrix elements of the coherent component of scattered radiation is considered. The dependence of the coherent backscattering effects on the microphysical properties of the medium scatterers are investigated. It is shown that random media of fractal-like clusters exhibit brightness and polarization opposition effects, which are like those observed for some atmosphereless Solar system bodies. Conditions for a bimodal angle dependence in the degree of linear polarization are discussed and the manifestation of the enhanced backscattering phenomenon in the intensity of scattered radiation is studied.

[1]  Gorden Videen,et al.  Photopolarimetry in remote sensing , 2004 .

[2]  Nieuwenhuizen,et al.  Full angular profile of the coherent polarization opposition effect , 2000, Journal of the Optical Society of America. A, Optics, image science, and vision.

[3]  M. Mishchenko,et al.  Polarization Properties of the Galilean Satellites of Jupiter: Observations and Preliminary Analysis , 1997 .

[4]  S. Skipetrov,et al.  Wave Scattering in Complex Media: From Theory to Applications , 2003 .

[5]  V. V. Omel'chenko,et al.  Scattering Properties of Planetary Regoliths Near Opposition , 2004 .

[6]  K. Ziegler Localization of electromagnetic waves in random media , 2003 .

[7]  Z. Kam,et al.  Absorption and Scattering of Light by Small Particles , 1998 .

[8]  V. L. Kuzmin,et al.  REVIEWS OF TOPICAL PROBLEMS: Coherent phenomena in light scattering from disordered systems , 1996 .

[9]  V. P. Tishkovets,et al.  Interference effects in backscattering of light by a layer of a discrete random medium , 2002 .

[10]  K. Muinonen Coherent backscattering of light by complex random media of spherical scatterers: numerical solution , 2004 .

[11]  F. Moreno,et al.  Introduction to Light Scattering from Microstructures , 2000 .

[12]  Michael I. Mishchenko,et al.  Calculation of the T matrix and the scattering matrix for ensembles of spheres , 1996 .

[13]  Wolf,et al.  Weak localization and coherent backscattering of photons in disordered media. , 1985, Physical review letters.

[14]  M. I. Mishchenko,et al.  Coherent backscatter and the opposition effect for E-type asteroids , 1993 .

[15]  K. Muinonen,et al.  Coherent Opposition Effect for Discrete Random Media , 2003 .

[16]  A. Lagendijk,et al.  Observation of weak localization of light in a random medium. , 1985, Physical review letters.

[17]  P. Litvinov,et al.  Coherent opposition effects for semi-infinite discrete random medium in the double-scattering approximation , 2002 .

[18]  Yu. A. Kravtsov,et al.  II Enhanced Backscattering in Optics , 1991 .

[19]  Andrew A. Lacis,et al.  Scattering, Absorption, and Emission of Light by Small Particles , 2002 .

[20]  V. Tishkovets Multiple scattering of light by a layer of discrete random medium: backscattering , 2002 .

[21]  V. Ozrin Exact solution for coherent backscattering of polarized light from a random medium of Rayleigh scatterers , 1992 .

[22]  A. Lacis,et al.  Multiple Scattering of Light by Particles: Radiative Transfer and Coherent Backscattering , 2006 .

[23]  J. M. Luck,et al.  Multiple Rayleigh Scattering of Electromagnetic Waves , 1996, cond-mat/9611175.

[24]  M. Mishchenko Diffuse and coherent backscattering by discrete random media—I. Radar reflectivity, polarization ratios, and enhancement factors for a half-space of polydisperse, nonabsorbing and absorbing spherical particles , 1996 .

[25]  Coherent backscattering of light by a layer of discrete random medium , 2004 .

[26]  Michael I. Mishchenko,et al.  Bidirectional Reflectance of Flat, Optically Thick Particulate Layers: An Efficient Radiative Transfer Solution and Applications to Snow and Soil Surfaces , 1999 .