Article ID Journal Published Year Pages File Type
5427076 Journal of Quantitative Spectroscopy and Radiative Transfer 2017 5 Pages PDF
Abstract

•We compare far-field scattering matrices generated by spheroidal and spherical volumes of discrete random medium.•Our results demonstrate robustness of coherent and diffuse scattering regimes and associated optical phenomena.•Nonsphericity of particulate volumes causes discernable (albeit less pronounced) optical effects in forward and backscattering directions.•They can be explained in terms of the same interference/multiple-scattering phenomenon.

We use the superposition T-matrix method to compare the far-field scattering matrices generated by spheroidal and spherical volumes of discrete random medium having the same volume and populated by identical spherical particles. Our results fully confirm the robustness of the previously identified coherent and diffuse scattering regimes and associated optical phenomena exhibited by spherical particulate volumes and support their explanation in terms of the interference phenomenon coupled with the order-of-scattering expansion of the far-field Foldy equations. We also show that increasing nonsphericity of particulate volumes causes discernible (albeit less pronounced) optical effects in forward and backscattering directions and explain them in terms of the same interference/multiple-scattering phenomenon.

Related Topics
Physical Sciences and Engineering Chemistry Spectroscopy
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