Strong coupling of multiple plasmon modes and excitons with excitation light controlled active tuning-Reference-Cited by-同舟云学术

Strong coupling of multiple plasmon modes and excitons with excitation light controlled active tuning

Published:2023-01-26 Issue:4 Volume:12 Page:735-742
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Niu Yijie¹²,Gao Long²³,Xu Hongxing¹⁴,Wei Hong²⁵^ORCID

Affiliation:

1. School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education , Wuhan University , Wuhan 430072 , China

2. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics , Chinese Academy of Sciences , Beijing 100190 , China

3. Institute of Microscale Optoelectronics , Shenzhen University , Shenzhen 518060 , China

4. School of Microelectronics , Wuhan University , Wuhan 430072 , China

5. Songshan Lake Materials Laboratory , Dongguan 523808 , China

Abstract

Abstract While the strong coupling between cavity modes and quantum emitters has been investigated in various systems, multiple surface plasmon modes in single nanostructures strongly coupling with excitons are rarely explored. Here, we investigate the strong coupling between three surface plasmon modes in silver nanowires and excitons in monolayer WSe2 at room temperature. Four plasmon-exciton polariton (plexciton) states are observed in the scattering spectra. The photoluminescence (PL) spectra of the hybrid system show clear splitting due to strong coupling, and the energies of the emission corresponding to the two lower plexciton states agree with that of the scattering very well. In addition, we show that the plasmon-exciton interaction in this system can be efficiently tuned by controlling the excitation power. These results reveal the fundamental properties of strong coupling between multiple plasmon modes and excitons, deepen the understanding of the correlation between scattering and PL spectra of plasmon-exciton strong coupling systems, and open up a new way to actively control the coupling between plasmonic nanostructures and two-dimensional semiconductors.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2022-0701/pdf

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