A superposition rule for light scattering by composite particles is presented that expresses the scattering amplitude of a composite particle as a superposition of that of the host particle and those of the shadowed inclusions. The superposition rule is derived for a soft composite particle but also provides insight into light scattering by a general composite scatterer. Favorable comparison with an exact numerical method demonstrates the usefulness of the rule in analyzing light scattering by composite particles such as biological cells.
Xu, Min, "Superposition rule for light scattering by a composite particle" (2006). Physics Faculty Publications. 13.
Min Xu. Superposition rule for light scattering by a composite particle. Optics Letters, 31:3223-3225, 2006. http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-22-3223