Complete 72-Parametric Classification of New and Old Kinds of Surface Plasmon Waves

TL;DR

This paper provides a comprehensive classification of all possible surface plasmon waves at boundaries of complex bi-anisotropic media, including metamaterials, based on a 72-parameter model.

Contribution

It introduces a complete, parametric classification scheme for surface plasmon waves in arbitrary linear bi-anisotropic media, expanding understanding of wave propagation in advanced materials.

Findings

Identified dispersion conditions for all classes of surface plasmon waves.

Defined a 72-parameter media class supporting specific surface plasmons.

Included analysis of waves in quartic metamaterials.

Abstract

We propose a general and complete classification of all possible new and old kinds of surface plasmon waves that can propagate at boundaries of arbitrary linear, local bi-anisotropic media, including the quartic metamaterials. For arbitrary frequency, wavelength, propagation direction, penetration depths and fields of the proposed surface plasmon waves we found the dispersion condition and determined the 72-parametric class of media that support a particular surface plasmon. A member of each class is a pair of anisotropic materials without magnetoelectric couplings.