Title :
Optical transmission on metallic wires-fundamental modes
Author :
Al-Bader, Samir J.
Author_Institution :
Electr. & Electron. Eng. Dept., Imperial Coll. of Sci., London, UK
fDate :
3/1/2004 12:00:00 AM
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;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2003.823016
