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Issue 25, 2020
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Single plasmon spatial and spectral sorting on a crystalline two-dimensional plasmonic platform

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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.

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

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Article information


Submitted
13 Mar 2020
Accepted
06 Jun 2020
First published
08 Jun 2020

Nanoscale, 2020,12, 13414-13420
Article type
Paper

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

U. Kumar, S. Bolisetty, R. Mezzenga, C. Girard, E. Dujardin and A. Cuche, Nanoscale, 2020, 12, 13414
DOI: 10.1039/D0NR02066D

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