Multiple surface-plasmon-polariton waves guided by a chiral sculptured thin film grown on a metallic grating

Coupling of Noncrossing Wave Modes in a Two-Dimensional Plasma Crystal

“…One prominent example is surface plasmon polariton (SPP), which is a surface wave traveling along a metal-dielectric interface, where the surface plasmon in the metal and polariton in the dielectric are intrinsically coupled. SPPs are crucial in the physics of evanescent waves in a dense plasma [22], surface waves guided by the interface of a metal and a dielectric material [23], and in 2D nanoparticle arrays in photonics [24].…”