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Optical Response of Rough Metal Surfaces and Island Films
Published online by Cambridge University Press: 25 February 2011
Abstract
This study treats the optical properties of different two-dimensional inhomogeneous systems in which localized and delocalized surface modes excited by incident light can exist. The optical response is described with the use of kinetic equations linking together different types of surface and bulk modes. It is important that both electromagnetic interactions between local modes and the dependence of the optical characteristics of centers on the local geometrical structure are taken into account.
It is shown that the behavior of experimentally observable quantities (enhancement ratioof the electric field at the surface, surface absorption, etc.) as functions of the frequency and concentration of local centers depends essentially on the excitation mechanismof local modes.
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- Copyright © Materials Research Society 1992