Enhancement of Infrared Faraday Effect in YIG Grating on Quartz Substrate

Abstract

This paper shows that the Faraday effect is enhanced up to 250 times when an infrared electromagnetic wave is obliquely incident on a structured film of yttrium iron garnet deposited on a quartz substrate. This structure can be used to develop efficient magneto-optical devices that require polarization conversion of waves, particularly for photon-magnon frequency converters from the microwave to the optical range. © 2025 Elsevier B.V., All rights reserved.