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arXiv · 2010.03927

Rough-Surface Shadowing of Self-Affine Random Rough Surfaces

Hannu Parviainen·Karri Muinonen
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Abstract

Light scattering from self-affine homogeneous isotropic random rough surfaces is studied using the ray-optics approximation. Numerical methods are developed to accelerate the first-order scattering simulations from surfaces represented as single-connected single-valued random fields, and to store the results of the simulations into a numerical reflectance model. Horizon mapping and marching methods are developed to accelerate the simulation. Emphasis is given to the geometric shadowing and masking effects as a function of surface roughness, especially, to the azimuthal rough-surface shadowing effect.

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Hannu Parviainen, Karri Muinonen. 2020-10-08. Rough-Surface Shadowing of Self-Affine Random Rough Surfaces. https://doi.org/10.1016/j.jqsrt.2007.01.025

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