Simulations of nanometric optical circuits by surface plasmon polariton gap waveguide

Abstract

The guided waves in the surface plasmon polariton gap waveguide (SPGW) excited through an aperture have been investigated by the three-dimensional simulations using a volume integral equation. The complex propagation constants of the guided waves have been calculated from the simulated optical fields using the least-squares fitting. Applications of SPGWs to nanosize E-plane planar optical circuits are also demonstrated.