A Study on Various Plasmonic Waveguide Structures

Surface Plasmon Polaritons (SPP) are surface electromagnetic waves that propagate at the interface between a dielectric and a metal. The wave propagates along the interface between two media and remains evanescently confused in both the media in the direction perpendicular to the interface. These surface electromagnetic waves arise due to the coupling of the electromagnetic fields to oscillations of the metal’s electron plasma. The Single interface between a metal and dielectric (M-D) is the basic surface plasmon waveguide and the multilayer Dielectric-Metal-Dielectric (D-M-D) and its complementary structure Metal-Dielectric-Metal (M-D-M) are also considered to be the fundamental waveguides for SPP.