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arXiv · 1905.11941

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

Spiridon D. Pappas·Philipp Lang·Tobias Eul·Michael Hartelt·Antonio García-Martín·Burkard Hillebrands·Martin Aeschlimann·Evangelos Th. Papaioannou
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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.

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Spiridon D. Pappas, Philipp Lang, Tobias Eul, Michael Hartelt, Antonio García-Martín, Burkard Hillebrands, Martin Aeschlimann, Evangelos Th. Papaioannou. 2019-05-28. Broadband enhancement of the magneto-optical activity of hybrid Au loaded Bi:YIG. https://doi.org/10.1039/d0nr00198h

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