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Deng, F., Liu, H., Xu, L. 
ORCID: 0000-0001-9071-4311, Lan, S. and Miroshnichenko, A.E.,
2020.
Strong exciton–plasmon coupling in a WS2 monolayer on Au film hybrid structures mediated by liquid Ga nanoparticles.
Laser and Photonics Reviews, 14 (4): 1900420.
ISSN 1863-8880
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Abstract
Realizing and manipulating strong light–matter coupling in 2D monolayer semiconductors is of paramount importance in the development of novel photonic devices. Here, it is revealed by numerical simulation that strong coupling between the excitons in a WS2 monolayer and the surface plasmon polaritons propagating on the surface of a thin Au film can be realized when the surface plasmon polaritons are generated via the Kretschmann–Raether configuration. The use of liquid Ga nanoparticles, which exhibit broad scattering spectra in visible light, is proposed to identify the strong exciton–plasmon coupling. It is demonstrated numerically and experimentally that the exciton–plasmon coupling strength, which is manifested in Rabi splitting, can be further enhanced by the in-plane localization of the electric field provided by liquid Ga nanoparticles. Anti-crossing of the scattering spectra can be observed by tuning the angle of the incident light and Rabi splitting exceeding 120 meV can be obtained. The results open new horizons for realizing strong exciton-plasmon coupling in hybrid structures composed of monolayer semiconductors and thin metal films and pave the way for the practical applications of strong light–matter interaction in nanoscale photonic devices.
| Item Type: | Journal article | ||||||
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| Publication Title: | Laser and Photonics Reviews | ||||||
| Creators: | Deng, F., Liu, H., Xu, L., Lan, S. and Miroshnichenko, A.E. | ||||||
| Publisher: | Wiley | ||||||
| Date: | April 2020 | ||||||
| Volume: | 14 | ||||||
| Number: | 4 | ||||||
| ISSN: | 1863-8880 | ||||||
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| Rights: | This is the peer reviewed version of the following article: Deng, F., Liu, H., Xu, L., Lan, S., & Miroshnichenko, A. E. (2020). Strong exciton–plasmon coupling in a WS2 monolayer on Au film hybrid structures mediated by liquid Ga nanoparticles. Laser and Photonics Reviews, 14(4), which has been published in final form at https://doi.org/10.1002/lpor.201900420 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. | ||||||
| Divisions: | Schools > School of Science and Technology | ||||||
| Record created by: | Laura Ward | ||||||
| Date Added: | 12 Nov 2021 10:22 | ||||||
| Last Modified: | 12 Nov 2021 10:22 | ||||||
| URI: | https://irep.ntu.ac.uk/id/eprint/44737 |
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