Circular polarization as an instrument for investigation of surfaces of atmosphereless celestial bodies. II. Theoretical simulation of light scattering by rough surfaces.

Details Circular polarization as an instrument for investigation of surfaces of atmosphereless celestial bodies. II. Theoretical simulation of light scattering by rough surfaces. Circular polarization as an instrument for investigation of surfaces of atmosphereless celestial bodies. II. Theoretical simulation of light scattering by rough surfaces.

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992kfnt....8....8d&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 8, No. 2, p. 8 - 14, 88

Physics

Scientific paper

A model that allows to calculate the Stokes vector for light scattered by a rough surface is described. The surface is considered as a set of microfacets that reflect light in accordance with the Fresnel laws and obey a certain distribution over the inclination. The calculations are based on the Mueller 4x4 matrix formalism and take account of multiple reflections of light from surface microfacets. The model has been used for interpretation of the experimental phase dependences of the circular polarization for absorptive substances which were described in Part I (see Abstr. 022.068) of this work. Theoretical phase dependences for iron, nickel and graphite agree well with the observed ones and show the same modifications when optical and structural properties of a surface change. The calculations confirm an earlier conclusion that the circular polarization can be used for determination of metals on the surfaces of atmosphereless celestial bodies and for detection of regolith on the surface of metaliferous objects.

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