Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature

Modifying the light–matter interactions in the plasmonic structures and the two-dimensional (2D) materials not only advances the deeper understanding of the fundamental studies of many-body physics but also provides the opportunities for exploration of novel 2D plasmonic polaritonic devices. Here, w...

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Main Authors: Zhang Min, Tian Yuan, Chen Xingzhou, Sun Zheng, Zhu Xiaolong, Wu Jian
Format: Article
Language:English
Published: De Gruyter 2023-07-01
Series:Nanophotonics
Subjects:
Online Access:https://doi.org/10.1515/nanoph-2023-0162
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author Zhang Min
Tian Yuan
Chen Xingzhou
Sun Zheng
Zhu Xiaolong
Wu Jian
author_facet Zhang Min
Tian Yuan
Chen Xingzhou
Sun Zheng
Zhu Xiaolong
Wu Jian
author_sort Zhang Min
collection DOAJ
description Modifying the light–matter interactions in the plasmonic structures and the two-dimensional (2D) materials not only advances the deeper understanding of the fundamental studies of many-body physics but also provides the opportunities for exploration of novel 2D plasmonic polaritonic devices. Here, we report the plasmon-exciton coupling in the hybrid system with a plasmonic metasurface which can confine the electric field in an extremely compact mode volume. Because of the 2D feature of the designed and fabricated Al plasmonic metasurface, the confined electronic field is distributed in the plane with the same orientation as that of the exciton dipole moment in the transition metal dichalcogenides monolayers. By finely tuning the geometric size of the plasmonic nanostructures, we can significantly modify the dispersion relation of the coupled plasmon and the exciton. Our system shows a strong coupling behavior with an achieved Rabi splitting up to ∼200 meV at room temperature, in ambient conditions. The effective tailoring of the plasmon-exciton coupling with the plasmonic metasurfaces provides the testing platform for studying the quantum electromagnetics at the subwavelength scale as well as exploring plasmonic polariton Bose–Einstein condensation at room temperature.
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spelling doaj.art-5faed6f1dcc54dde847b5013aa939c872023-08-07T06:56:54ZengDe GruyterNanophotonics2192-86142023-07-0112163267327510.1515/nanoph-2023-0162Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperatureZhang Min0Tian Yuan1Chen Xingzhou2Sun Zheng3Zhu Xiaolong4Wu Jian5State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200241, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200241, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200241, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200241, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200241, ChinaState Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200241, ChinaModifying the light–matter interactions in the plasmonic structures and the two-dimensional (2D) materials not only advances the deeper understanding of the fundamental studies of many-body physics but also provides the opportunities for exploration of novel 2D plasmonic polaritonic devices. Here, we report the plasmon-exciton coupling in the hybrid system with a plasmonic metasurface which can confine the electric field in an extremely compact mode volume. Because of the 2D feature of the designed and fabricated Al plasmonic metasurface, the confined electronic field is distributed in the plane with the same orientation as that of the exciton dipole moment in the transition metal dichalcogenides monolayers. By finely tuning the geometric size of the plasmonic nanostructures, we can significantly modify the dispersion relation of the coupled plasmon and the exciton. Our system shows a strong coupling behavior with an achieved Rabi splitting up to ∼200 meV at room temperature, in ambient conditions. The effective tailoring of the plasmon-exciton coupling with the plasmonic metasurfaces provides the testing platform for studying the quantum electromagnetics at the subwavelength scale as well as exploring plasmonic polariton Bose–Einstein condensation at room temperature.https://doi.org/10.1515/nanoph-2023-0162metasurfaceplasmon-exciton polaritonrabi splitting
spellingShingle Zhang Min
Tian Yuan
Chen Xingzhou
Sun Zheng
Zhu Xiaolong
Wu Jian
Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature
Nanophotonics
metasurface
plasmon-exciton polariton
rabi splitting
title Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature
title_full Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature
title_fullStr Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature
title_full_unstemmed Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature
title_short Observation of ultra-large Rabi splitting in the plasmon-exciton polaritons at room temperature
title_sort observation of ultra large rabi splitting in the plasmon exciton polaritons at room temperature
topic metasurface
plasmon-exciton polariton
rabi splitting
url https://doi.org/10.1515/nanoph-2023-0162
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