A simple comparison with predictions from a scattering surface model shows discrepancies in treatments of thin island films that are based on the effective-medium model. A new approach is thus proposed, and the transmission of a square network of spherical particles on a dielectric substrate is recalculated in a dipolar approximation. Although a convenient multipolar treatment, which would permit retardation-related effects to be handled in a proper way, is still missing, the present partially retarded treatment shows a clear improvement over available predictions.
© 1992 Optical Society of America
Giulio Bosi, "Transmission of a thin film of spherical particles on a dielectric substrate: the concept of effective medium revisited," J. Opt. Soc. Am. B 9, 208-213 (1992)