In-out asymmetry and interference effects in plasmon excitation by swift charged particles traversing a surface

We investigate the excitation of plasmons by a fast charged particle moving in the vicinity or traversing the surface of a solid along an arbitrary trajectory. We use both quantum-mechanical and semiclassical dielectric formulations to study how the particle couples with the bulk and surface excitat...

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Bibliographic Details
Authors: Gervasoni, Juana Luisa, Barrachina Tejada, Raul Oscar, Segui Osorio, Silvina Inda Maria, Werner, W.
Format: article
Status:Published version
Publication Date:2013
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/11039
Online Access:http://hdl.handle.net/11336/11039
Access Level:Open access
Keyword:In-Out Asymmetry
Plasmon Excitation
Interference Effects
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Description
Summary:We investigate the excitation of plasmons by a fast charged particle moving in the vicinity or traversing the surface of a solid along an arbitrary trajectory. We use both quantum-mechanical and semiclassical dielectric formulations to study how the particle couples with the bulk and surface excitations. We pay special attention to the differences and similarities between incoming and outgoing trajectories, finding some novel oscillatory structures that can be ascribed to an interference effect between direct and reflected plasmon excitations.