# 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.

## Key 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.

---
Source: https://tomesphere.com/paper/1703.04444