Enhancement of Infrared Faraday Effect in YIG Film with Au Lattice

Abstract

It was numerically shown that the application of Au lattice on the surface of thin yttrium iron garnet film leads to the Faraday effect enhancement in the infrared band by a factor of 80 at the oblique incidence. This result can be used to design compact magnetooopic devices and efficient photon-magnon frequency converters from the microwave to optical range. © 2025 Elsevier B.V., All rights reserved.