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Towards Exciton-Polaritons in an Individual MoS2 Nanotube

Ioffe Institute, 26 Politekhnicheskaya, 194021 St Petersburg, Russia
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Nanomaterials 2020, 10(2), 373; https://doi.org/10.3390/nano10020373
Received: 27 January 2020 / Revised: 12 February 2020 / Accepted: 17 February 2020 / Published: 20 February 2020
(This article belongs to the Section Nanophotonics Materials and Devices)
We measure low-temperature micro-photoluminescence spectra along a MoS 2 nanotube, which exhibit the peaks of the optical whispering gallery modes below the exciton resonance. The energy fluctuation and width of these peaks are determined by the changes of the nanotube wall thickness and propagation of the optical modes along the nanotube axis, respectively. We demonstrate the potential of the high-quality nanotubes for realization of the strong coupling between exciton and optical modes when the Rabi splitting can reach 400 meV. We show how the formation of exciton-polaritons in such structures will be manifested in the micro-photoluminescence spectra and analyze the conditions needed to realize that. View Full-Text
Keywords: nanotubes; monolayer; flake; WGM; micro-photoluminescence; exciton-polariton; 2D materials; TMDC; strong coupling nanotubes; monolayer; flake; WGM; micro-photoluminescence; exciton-polariton; 2D materials; TMDC; strong coupling
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Kazanov, D.; Rakhlin, M.; Poshakinskiy, A.; Shubina, T. Towards Exciton-Polaritons in an Individual MoS2 Nanotube. Nanomaterials 2020, 10, 373.

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