Open AccessLeaky modes of curved long-range surface plasmon-polariton waveguide
Author(s) -
Woo-Kyung Kim,
Wooseok Yang,
Hyung-Man Lee,
Han-Young Lee,
Myung–Hyun Lee,
WooSik Jung
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.013043
Subject(s) - surface plasmon polariton , optics , surface plasmon , bent molecular geometry , waveguide , polariton , materials science , bending , plasmon , physics , composite material
A three-dimensional method for obtaining the bending losses and field distributions of bent surface plamon-polariton waveguides is presented. The method is based on a so called 'method of line', which discretises potential in the direction of the metal-widths, and leads to Airy-equations in the radial direction. From the results obtained. It is confirmed that thiner metal waveguide enable longer-ranging propagation of surface plasmon-polariton mode, but the weakened confinement requires larger bending radii on order to keep radiation loss.