Resonant excitation of spin waves in hybrid nanostructures via frequency combs

S. A. Kolodny, D. I. Yudin, V. Iorsh

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Here we propose a new method of resonant optical excitation of spin waves in hybrid nanostructures via frequency comb. We consider a two-layer nanostructure consisting of an Au layer with a grating on the top and an yttrium iron garnet (YIG) thin film at the bottom. The plasmon evanescent fields induce time-independent magnetic polarization via the transverse magneto-optical Kerr effect (TMOKE) at the Au-YIG interface. Thus magnetic polarization in turn plays a role of a source for the excitation of the spin waves in YIG film. We show that by using the frequency comb as a source we can generate the magnetic polarization in resonance with the spin waves in YIG thus substantially increasing the magneto-optical response of the system. These results open new routes in the optical control of spintronics systems.

Original languageEnglish
Article number012060
JournalJournal of Physics: Conference Series
Volume1092
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event3rd International Conference on Metamaterials and Nanophotonics, METANANO 2018 - Sochi, Russian Federation
Duration: 17 Sep 201821 Sep 2018

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