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Single plasmon spatial and spectral sorting on a crystalline two-dimensional plasmonic platform

Upkar Kumar 1 Sreenath Bolisetty 2 Raffaele Mezzenga 2 Christian Girard 1 Erik Dujardin 3 Aurelien Cuche 1
1 CEMES-NeO - Nano-Optique et Nanomatériaux pour l'optique
CEMES - Centre d'élaboration de matériaux et d'études structurales
3 CEMES-GNS - Groupe NanoSciences
CEMES - Centre d'élaboration de matériaux et d'études structurales
Abstract : In the context of the emerging field of quantum plasmonics, we demonstrate in this manuscript the wavelength-dependent propagation and sorting of single plasmons launched in a two-dimensional crystalline gold flake by a broadband quantum nanoemitter. The stream of single plasmons in the visible is produced by a nanodiamond hosting a single nitrogen-vacancy color center positioned in the near field of the mesoscopic metallic microplatelet. Spatially and spectrally resolved images of the single plasmon propagation in the pristine hexagonal flake, and then in the same structure after insertion of a Bragg mirror, are obtained by filtered image-plane acquisitions on a leakage-radiation microscope. Our work on two-dimensional crystalline structures paves the way to future fundamental studies and applications in quantum plasmonics.
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https://hal.archives-ouvertes.fr/hal-02991788
Contributor : Aurelien Cuche <>
Submitted on : Monday, November 16, 2020 - 9:32:00 AM
Last modification on : Thursday, November 26, 2020 - 3:28:56 AM

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Upkar Kumar, Sreenath Bolisetty, Raffaele Mezzenga, Christian Girard, Erik Dujardin, et al.. Single plasmon spatial and spectral sorting on a crystalline two-dimensional plasmonic platform. Nanoscale, Royal Society of Chemistry, 2020, 12 (25), pp.13414-13420. ⟨10.1039/D0NR02066D⟩. ⟨hal-02991788⟩

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