The basic mechanisms describing radiation scattered by large optically soft spheres are presented in this paper. The contributions of different components of geometrical optics to formation of the integral indicatrix have been estimated. The asymptotic equations for the asymmetry coefficient have been obtained.
Nickolay V. Shepelevich,
Inna V. Prostakova,
Valeriy N. Lopatin,
"Asymmetry coefficient for large optically soft spherical particles," Journal of Biomedical Optics 7(3), (1 July 2002). https://doi.org/10.1117/1.1481901