Selvedge Treatment of the Aluminum and Silver Bilayer System

概要

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This paper is dedicated to the theoretical study of aluminum and silver bilayer systems submitted to an optical electromagnetic field. The bulk metallic layers are considered as neutral "jelliums" while the surface regions are modelled in terms of macroscopic as well as microscopic physics and they are referred to as "selvedges". These contain within their boundaries all interface roughness and surface atomic inhomogeneities. Furthermore, since the charge neutrality of the bulk media is broken close to the surface, the selvedges will also contain static charge densities that have appeared in order to screen them. When the selvedges are submitted to an incident optical beam, they are considered to be polarised and therefore emit supplementary fields. These are calculated with the help of the Heaviside notation and as a function of the electric polarisation and the electronic charge density distribution. An hydrodynamic approach and therefore Euler's equation were adopted in this case to account for the electronic dynamics in the selvedge.
社団法人日本物理学会の論文
1994-05-15