A complete description of the dispersion relation for thin metal film plasmon-polaritons

Author

Burton, Fraser A. ; Cassidy, Stephen A.

Author_Institution

British Telecom Res. Lab., Ipswich, UK

Volume

8

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1843

Lastpage

1849

Abstract

A versatile numerical method is used to solve the plasmon-polariton dispersion relation for a planar thin-metal-film geometry. A complete description of the variation of effective-mode index and propagation length with metal thickness and cover index is presented for all four modes. The spatial distribution of these modes is calculated explicitly. The effects of a nonideal metal film and of dielectric loss in the cover material is considered

Keywords

dispersion relations; electromagnetic wave propagation; metallic thin films; polaritons; surface plasmons; waveguide theory; cover index; dielectric loss; dispersion relation; effective-mode index; metal thickness; nonideal metal film; numerical method; planar thin-metal-film geometry; plasmon-polariton dispersion relation; propagation length; spatial mode distribution; thin metal film plasmon-polaritons; Dielectric constant; Dielectric losses; Dielectric substrates; Dielectric thin films; Dispersion; Geometry; Optical attenuators; Optical films; Optical polarization; Optical waveguides;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.62881

Filename

62881