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Institut f. Physik FG Nanostrukturierte Materialien
Martin-Luther-Universitat Halle-Wittenberg
Von-Danckelmann-Platz 3, D-06120 Halle, Germany
Tel.: +49 345 55 25321
Fax.: +49 345 55 27034
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Spiridon D. Pappas, Philipp Lang, Tobias Eul, Michael Hartelt, Antonio García-Martín, Burkard Hillebrands, Martin Aeschlimann and Evangelos Th. Papaioannou Near-field mechanism of the enhanced broadband magneto-optical activity of hybrid Au loaded Bi:YIG Nanoscale 12 (2020-04-09 09:44:20), 7309-7314 DOI: 10.1039/D0NR00198H
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 |
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