A finite-difference vector beam propagation method for an isotropic open chiral slab waveguide

Abstract

In this paper, we present a formulation of a finite‐difference vector beam propagation method for an isotropic open chiral slab waveguide. This method allows the analysis of wave propagation on a chiral slab waveguide whose structure varies along the propagating direction. Numerical results show that the proposed method works successfully. Using this method, we present two interesting examples of numerical calculation. One is the phenomenon that the first mode is converted to the third mode by a tapered chiral waveguide. The other is the phenomenon that the TE mode is converted to the TM mode by a straight chiral waveguide. © 1998 Scripta Technica, Electron Comm Jpn Pt 2, 81(1): 21–31, 1998.

Analysis of polarization plane rotation characteristic in 2D photonic crystal waveguide with chiral medium by condensed node spatial network

“…In the case of slab waveguide as shown in Fig. 3, a TE-TM mode converter using rotation characteristics of polarization plane was proposed [15], and its characteristics can be explained by the proposed analysis.…”

“…With chiral media [12][13][14] considered in the present study, electric/magnetic flux density is affected by both magnetic and electric fields, which offers a number of distinctive characteristics. There is a report on mode converter (TE → TM or TM → TE) with a slab waveguide structure using rotation characteristics of polarization plane [15]. This study aims at implementation of such rotation characteristics of photonic crystal waveguides involving chiral media, and applying these characteristics to mode converters.…”