The intensity scattered by particles randomly placed beneath a rough interface is studied with rigorous simulations. It is shown that the angular intensity pattern is close to that obtained by adding the intensity scattered by particles under a flat surface to that scattered by a rough homogeneous surface whose permittivity is evaluated with an effective-medium theory. This heuristic splitting rule is accurate for a large range of parameters that are well beyond any perturbative treatment.
© 2002 Optical Society of America
A. Sentenac, H. Giovannini, and M. Saillard, "Scattering from rough inhomogeneous media: splitting of surface and volume scattering," J. Opt. Soc. Am. A 19, 727-736 (2002)