Coherent Coupling of WS2 Monolayers with Metallic Photonic Nanostructures at Room Temperature
Year: 2016
Type: article
Abstract: Room temperature strong coupling of WS2 monolayer exciton transitions to metallic Fabry-Pérot and plasmonic optical cavities is demonstrated. A Rabi splitting of 101 meV is observed for the Fabry-Pérot cavity. The enhanced magnitude and visibility of WS2 monolayer strong coupling is attributed to the larger absorption coefficient, the narrower line width of the A exciton transition, and greater spin-orbit coupling. For WS2 coupled to plasmonic arrays, the Rabi splitting still reaches 60 meV despite the less favorable coupling conditions, and displays interesting photoluminescence features. The unambiguous signature of WS2 monolayer strong coupling in easily fabricated metallic resonators at room temperature suggests many possibilities for combining light-matter hybridization with spin and valleytronics.
Source: Nano Letters
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: bottom-UP blueprinting GRAphene baseD Electronics, G1949054838, G1970392293, Par-delà les frontières, l'Université de Strasbourg, G2448992187, G3188687615, Center of Chemistry of Complex System, Graphene-Based Revolutions in ICT And Beyond, G4011477769, G471331628, G4873647100, Optique Ultrarapide, Nanophotonique et Plasmonique, G6096795348, G6331996451, G6364173891, G6740242506, G7002111755, G7092843883, G7240651115, G7376787254, G783677704, Nanostructures en Interaction avec leur Environnement, G8091757531, G8510727784, G8864227411
OpenAlex ID: W2342531910