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Issue 13, 2020
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Near-field mechanism of the enhanced broadband magneto-optical activity of hybrid Au loaded Bi:YIG

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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

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Supplementary files

Article information


Submitted
08 Jan 2020
Accepted
28 Jan 2020
First published
18 Mar 2020

This article is Open Access

Nanoscale, 2020,12, 7309-7314
Article type
Paper

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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