Surface plasmon-polariton waves guided by reciprocal, uniaxially chiral, bianisotropic material

摘要

The propagation of the surface plasmon-polariton (SPP) waves guided by an interface of a metal and a reciprocal, uniaxially chiral, bianisotropic material were studied. The wavenumbers and the spatial profiles of the SPP waves were computed when the waves were guided by the interface perpendicular to the direction of the chirality. When the chirality parameter was negligible, the SPP waves were p polarized. When the chirality parameter was large, the SPP waves were neither p nor s polarized. The solutions of the dispersion equation were found only when the chirality parameter was complex and the real part was smaller than a threshold value.