Complex waveguide based on a magneto-optic layer and a dielectric photonic crystal

TL;DR

This paper theoretically explores a complex layered structure combining a magneto-optic waveguide and a dielectric photonic crystal, revealing polarization filtering effects and mode propagation regimes based on geometrical parameters.

Contribution

It introduces a detailed theoretical analysis of electromagnetic dispersion and polarization in a novel multi-layered waveguide structure with magneto-optic and photonic crystal layers.

Findings

Polarization filtering of TE and TM modes depends on geometrical parameters.

Different mode propagation regimes are identified within the structure.

Numerical analysis demonstrates control over waveguide polarization properties.

Abstract

We theoretically investigate the dispersion and polarization properties of the electromagnetic waves in a multi-layered structure composed of a magneto-optic waveguide on dielectric substrate covered by one-dimensional dielectric photonic crystal. The numerical analysis of such a complex structure shows polarization filtration of TE- and TM-modes depending on geometrical parameters of the waveguide and photonic crystal. We consider different regimes of the modes propagation inside such a structure: when guiding modes propagate inside the magnetic film and decay in the photonic crystal; when they propagate in both magnetic film and photonic crystal.