Investigation of p-polarized wave propagation through nonmagnetic chiral interfaces and slabs without and with dielectric loss

Abstract

ABSTRACT Wave propagation through a nonmagnetic achiral/chiral (ACC) interface (en route to chiral/achiral (CAC) interfaces and resonant slabs) is investigated in-depth using amplitude Fresnel coefficients (FCs). A p-polarized plane wave at the interface is tracked for rarer-to-denser configuration, followed by incidence at a CAC interface under stand-alone and ACC source interface conditions. Finally, a model involving a low-loss tangent chiral dielectric is examined by investigating the corresponding reflection and transmission behaviour. Detailed understanding of the (anomalous or normal) occurrence of total internal reflection (TIR), inverse total internal reflection (ITIR), evanescence, – and – based envelope decay and propagation across the modes in the longitudinal and transverse directions. A few sample simulations involving chiral slab resonators with p-polarization incidence are also presented. In ongoing follow-up work, dual lossy interfaces combined to create chiral resonators and arrays (in the thick or thin film regimes) will be investigated building upon the results presented here.