Multipole surface plasmon resonance of an aluminium surface |
| |
Authors: | Georges Ra?eev Doina Bejan |
| |
Institution: | a Institut de Sciences Moléculaires d'Orsay (FRE 3363), Bât.210, F-91405 Orsay, France b Univ. Paris-Sud 11, F-91405 Orsay, France c Department of Physics, University of Bucharest, Romania |
| |
Abstract: | The surface photoelectric effect and the surface plasmon resonances appear when a p/transverse magnetic polarized laser hits a gas-solid interface. We model this effect in the long wave length (LWL) domain (λvac > 10 nm, ?ω < 124 eV) by combining the Ampère-Maxwell equation, written in classical approximation, with the material equation for the susceptibility. The resulting model, called the vector potential from the electron density (VPED), calculates the susceptibility as a product of the bulk susceptibility and the electron density of the actual system. The bulk susceptibility is a sum of the bound electron scalar susceptibility taken from the experiment and of the conduction electron non-local isotropic susceptibility tensor in a jellium metal (Lindhard, 1954 1]). The electron density is the square of the wave function solution of the Schrödinger equation. The analysis of observables, the reflectance R and the photoelectron yield Y as well as the induced charge density permits to identify and characterize the multipole surface plasmon resonance of Al(111) appearing at ωm ∼ 0.8ωp or 11-12 eV. |
| |
Keywords: | Surface photoelectric effect Laser-matter interaction Metallic surfaces |
本文献已被 ScienceDirect 等数据库收录! |
|