Issue 13, 2020

Near-field mechanism of the enhanced broadband magneto-optical activity of hybrid Au loaded Bi:YIG

Abstract

We unravel the underlying near-field mechanism of the enhancement of the magneto-optical activity of bismuth-substituted yttrium iron garnet films (Bi:YIG) loaded with gold nanoparticles. The experimental results show that the embedded gold nanoparticles lead to a broadband enhancement of the magneto-optical activity with respect to the activity of the bare Bi:YIG films. Full vectorial near- and far-field simulations demonstrate that this broadband enhancement is the result of a magneto-optically enabled cross-talking of orthogonal localized plasmon resonances. Our results pave the way to the on-demand design of the magneto-optical properties of hybrid magneto-plasmonic circuitry.

Graphical abstract: Near-field mechanism of the enhanced broadband magneto-optical activity of hybrid Au loaded Bi:YIG

Supplementary files

Article information

Article type
Paper
Submitted
08 Jan 2020
Accepted
28 Jan 2020
First published
18 Mar 2020
This article is Open Access
Creative Commons BY license

Nanoscale, 2020,12, 7309-7314

Near-field mechanism of the enhanced broadband magneto-optical activity of hybrid Au loaded Bi:YIG

S. D. Pappas, P. Lang, T. Eul, M. Hartelt, A. García-Martín, B. Hillebrands, M. Aeschlimann and E. Th. Papaioannou, Nanoscale, 2020, 12, 7309 DOI: 10.1039/D0NR00198H

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