Magneto-optical metamaterial

TL;DR

This paper introduces magneto-optical metamaterials that significantly enhance polarization rotation angles using wire mesh structures, outperforming bulk materials while maintaining low loss and high extinction ratio.

Contribution

It presents a novel design of magneto-optical metamaterials with tailored permittivity tensors for improved polarization rotation performance.

Findings

Rotation angle increased up to 9 times

Extinction ratio below -20dB

Insertion loss less than 1.5dB

Abstract

We propose a new class of metamaterials called magneto-optical metamaterials that offer enhanced angle of rotation in polarization compared to bulk magneto-optical materials. In the proposed approach, the permittivity tensor of a magneto-optical material is tailored by embedded wire meshes behaving as artificial plasma. We have shown that the angle of rotation in the magneto-optical metamaterial can be enhanced up to 9 times compared to bulk magneto-optical material alone while the polarization extinction ratio remains below -20dB and insertion loss is less than 1.5dB.