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arXiv · 1604.06656

Coherent Coupling of WS_2 Monolayers with Metallic Photonic Nanostructures at Room Temperature

S. Wang·S. Li·T. Chervy·A. Shalabney·S. Azzini·E. Orgiu·J. A. Hutchison·C. Genet·P. Samori·T. W. Ebbesen
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Abstract

Room temperature strong coupling of WS_2 monolayer exciton transitions to metallic Fabry-Perot and plasmonic optical cavities is demonstrated. A Rabi splitting of 101 meV is observed for the Fabry-Perot cavity, more than double those reported to date in other 2D materials. The enhanced magnitude and visibility of WS_2 monolayer strong coupling is attributed to the larger absorption coefficient, the narrower linewidth of the A exciton transition, and greater spin-orbit coupling. For WS_2 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 WS_2 monolayer strong coupling in easily fabricated metallic resonators at room temperature suggests many possibilities for combining light-matter hybridization with spin and valleytronics.

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BibTeXRIS

S. Wang, S. Li, T. Chervy, A. Shalabney, S. Azzini, E. Orgiu, J. A. Hutchison, C. Genet, P. Samori, T. W. Ebbesen. 2016-04-22. Coherent Coupling of WS_2 Monolayers with Metallic Photonic Nanostructures at Room Temperature. https://doi.org/10.1021/acs.nanolett.6b01475

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