F. Mariotte et N. Engheta, REFLECTION AND TRANSMISSION OF GUIDED ELECTROMAGNETIC-WAVES AT AN AIR-CHIRAL INTERFACE AND AT A CHIRAL SLAB IN A PARALLEL-SLATE WAVE-GUIDE, IEEE transactions on microwave theory and techniques, 41(11), 1993, pp. 1895-1906
recently, the concept of chirowaveguides, which exhibit some novel and
interesting properties due to electromagnetic chirality, was introduc
ed and studied elsewhere. In this paper, we analyze theoretically anot
her problem associated with chirowaveguides, namely, the problem of re
flection and transmission of guided waves at an air-chiral interface a
nd at a chiral slab located transversely in a parallel-plate waveguide
. The notable features and the role of chirality of the medium on the
reflected and transmitted guided waves are discussed, and physical ins
ights into these results are provided. It is found that since the guid
ed modes inside the chiral region of the waveguide are hybrid, in orde
r to satisfy the boundary conditions at interfaces, the reflected and
transmitted guided modes in the air regions of the waveguides need to
be of TE and TM modes. The motivation behind this study is the potenti
al applications of this problem to the design of novel measurement tec
hniques for determining material parameters of chiral composites.