Title :
Confined modes in a plasmonic waveguide
Author :
Guizal, B. ; Felbacq, Didier ; Castanie, Aurore
Author_Institution :
Lab. Charles Coulomb Unite Mixte de Rech., Univ. de Montpellier 2, Montpellier, France
Abstract :
The effect of confinement on surface plasmon polariton in a planar nanocavity was studied. The generalized modes were obtained and studied in detail. In this work, we study the effect of confinement on surface plasmons in a planar cavity with a wall coated with a lossy metal as well as with two walls coated with a lossy metal. The dispersion curves are studied in details and explicit relations are obtained locally for the first case. It is shown that modes strongly concentrated at the air-metal interface can be obtained. Finally, we discuss the modes of the lossy waveguide, in particular their completeness.
Keywords :
absorbing media; dispersion (wave); nanoelectronics; planar waveguides; plasma confinement; plasma filled waveguides; plasmonics; polaritons; surface plasmons; waveguide theory; air-metal interface; confined modes; confinement effect; dispersion curves; generalized modes; lossy metal; lossy waveguide; planar nanocavity; plasmonic waveguide; surface plasmon polariton; Dispersion; Electromagnetic waveguides; Metals; Optical surface waves; Plasmons; Surface treatment; Surface waves; Field concentration; Microcavities; Spatial Dispersion; Surface Plasmons Polaritons;
Conference_Titel :
Transparent Optical Networks (ICTON), 2013 15th International Conference on
Conference_Location :
Cartagena
DOI :
10.1109/ICTON.2013.6602696
