Behavior of a chiral material in terms of a guided wave propagation

Abstract

In this approach, we study the behavior of a chiral material in terms of the propagation of guided wave. In this study, we are particularly interested by the field distribution in a coplanar structure based on the involved chiral material. This chiral material is supposed to be homogeneous, isotropic and lossless. In this paper, the characteristics of wave guided propagation in chiral medium have been analyzed. Using Maxwell's curl equations for source-free regions together with the set of constitutive relations, the dispersion relation of propagating and evanescent modes for this chirowaveguide have been obtained and analyzed. We show that the existent modes regardless to their nature: propagative or evanescent; are both bifurcated modes. In this paper, the formalism used to describe the chirowaveguide represent a new approach, which is based on calculation of longitudinal and transverse operators. The derivation proposed here is new and different of that used in [4]. The results obtained, using a different method based on a new mathematical approach, are substantially the same as that one published in the literature.