Optical transmission on metallic wires-fundamental modes

Author

Al-Bader, Samir J.

Author_Institution

Electr. & Electron. Eng. Dept., Imperial Coll. of Sci., London, UK

Volume

40

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

325

Lastpage

329

Abstract

The surface-plasmon-polaritons supported by a metal stripe are of theoretical and experimental interest. The well-known symmetric and antisymmetric modes of the slab model become the respective fundamental modes of the stripe. Their dispersion and loss characteristics are calculated for a silver stripe embedded in silicon. In contrast to the slab case, higher order modes also occur for the stripe. Corner modes that have no analogous modes in the slab model are obtained. The method of calculation used is a full-vectorial finite difference scheme for the coupled transverse components of the magnetic field.

Keywords

coupled mode analysis; finite difference methods; light transmission; metallic thin films; nanowires; near-field scanning optical microscopy; polaritons; silicon; silver; surface plasmons; Ag-Si; corner modes; coupled transverse components; dispersion characteristic; full-vectorial finite difference; fundamental modes; higher order modes; losses; metallic wires; optical transmission; silver stripe; slab model; surface-plasmon polaritons; Biomedical optical imaging; Dielectric losses; Magnetic fields; Magnetic films; Optical films; Optical microscopy; Optical surface waves; Silver; Slabs; Surface waves;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2003.823016

Filename

1271366