Calculation of the aggregation and electrodynamic effects in granular systems

A calculation based on a multiple scattering model is presented in order to obtain the absorption of aggregated granular metals. The model is based on a T-matrix formalism in which the scattering units are clusters of nearest-neighbor metallic particles and the behavior of the scattering units is described by the orientational-averaged T-matrix of the clusters. The remainder of the system containing these scattering units will be considered in an effective medium calculation. The formalism is applicable to systems in which the sizes of the particles require the consideration of electrodynamic effects.