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arXiv · 1105.3842

Spectral tunability of a plasmonic antenna with a dielectric nanocrystal

Yury Alaverdyan·Nick Vamivakas·Joshua Barnes·Claire Lebouteiller·Jack Hare·Mete Atatüre
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Abstract

We show that the positioning of a nanometer length scale dielectric object, such as a diamond nanocrystal, in the vicinity of a gold bowtie nanoantenna can be used to tune the plasmonic mode spectrum on the order of a linewidth. We further show that the intrinsic luminescence of gold enhanced in the presence of nanometer-scale roughness couples efficiently to the plasmon mode and carries the same polarization anisotropy. Our findings have direct implications for cavity quantum electrodynamics related applications of hybrid antenna-emitter complexes.

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Yury Alaverdyan, Nick Vamivakas, Joshua Barnes, Claire Lebouteiller, Jack Hare, Mete Atatüre. 2011-05-19. Spectral tunability of a plasmonic antenna with a dielectric nanocrystal. https://doi.org/10.1364/oe.19.018175

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