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arxiv: 1905.11941 · v1 · pith:JXNAE4GF · submitted 2019-05-28 · physics.app-ph · cond-mat.mes-hall

Broadband enhancement of the magneto-optical activity of hybrid Au loaded Bi:YIG

Spiridon D. Pappas , Philipp Lang , Tobias Eul , Michael Hartelt , Antonio Garc\'ia-Mart\'in , Burkard Hillebrands , Martin Aeschlimann , Evangelos Th. Papaioannou This is my paper

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classification physics.app-ph cond-mat.mes-hall
keywords activityenhancementmagneto-opticalbroadbandfilmsgoldhybridloaded
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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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