Work

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

Year: 2020

Type: article

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.

Source: Nanoscale

DOI: 10.1039/d0nr02066d

Authors: Upkar Kumar, Sreenath Bolisetty, Raffaele Mezzenga, Christian Girard, Erik Dujardin, Aurélien Cuche

Institutions: Centre National de la Recherche Scientifique, Centre d’Élaboration de Matériaux et d’Études Structurales, Université de Toulouse, ETH Zurich

Language: English

Topic: Plasmonic and Surface Plasmon Research

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Awards: Reconfigurable Colloidal Plasmonic Circuits, Science et Ingénierie à l'Echelle Nano