Characterization of surface-plasmon modes in metal-clad optical waveguides.
Finite-element analysis, based on the vector H-field formulation and incorporating the perturbation technique, is used to calculate the complex propagation characteristics of metal-coated dielectric waveguides. The propagation and attenuation characteristics of the surface-plasmon modes at the metal/dielectric interfaces are presented. The effects on the optical properties of metal-clad optical fibers with infinite and finite cladding thickness and the formation of the supermodes due to the coupling between the surface-plasmon modes in the presence of different surrounding materials are also investigated.
Themistos
C
C
Photonics Research Group, School of Engineering and Mathematical Sciences, City University, Northampton Square, London, UK.
Rahman
B M A
BM
Rajarajan
M
M
Kalli
K
K
Grattan
K T V
KT