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Special Issue:
SPECIAL TOPIC — Nanophotonics
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Room-temperature strong coupling between dipolar plasmon resonance in single gold nanorod and two-dimensional excitons in monolayer WSe2 |
| Jinxiu Wen(温锦秀)1,4, Hao Wang(汪浩)1,3, Huanjun Chen(陈焕君)1,2, Shaozhi Deng(邓少芝)1,2, Ningsheng Xu(许宁生)1,2 |
1 State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-sen University, Guangzhou 510275, China;
2 School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China;
3 School of Physics, Sun Yat-sen University, Guangzhou 510275, China;
4 School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, China |
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Abstract All-solid-state strong coupling systems with large vacuum Rabi splitting energy have great potential applications in future quantum information technologies, such as quantum manipulations, quantum information storage and processing, and ultrafast optical switches. Monolayer transition metal dichalcogenides (TMDs) have recently been explored as excellent candidates for the observation of solid-state strong coupling phenomena. In this work, from both experimental and theoretical aspects, we explored the strong coupling effect by integrating an individual plasmonic gold nanorod into the monolayer tungsten diselenide (WSe2). Evident anti-crossing behavior was observed from the coupled energy diagram at room temperature; a Rabi splitting energy of 98 meV was extracted.
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Received: 16 April 2018
Revised: 23 May 2018
Accepted manuscript online:
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PACS:
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61.46.Km
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(Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires))
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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71.45.Gm
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(Exchange, correlation, dielectric and magnetic response functions, plasmons)
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61.46.Hk
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(Nanocrystals)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51290271 and 11474364), the National Basic Research Program of China (Grant Nos. 2013CB933601 and 2013YQ12034506), the Natural Science Funds for Distinguished Young Scholars of Guangdong Province, China (Grant No. 2014A030306017), the Pearl River S & T Nova Program of Guangzhou, China (Grant No. 201610010084), and the Guangdong Special Support Program, China. |
Corresponding Authors:
Huanjun Chen, Shaozhi Deng
E-mail: chenhj8@mail.sysu.edu.cn;stsdsz@mail.sysu.edu.cn
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Cite this article:
Jinxiu Wen(温锦秀), Hao Wang(汪浩), Huanjun Chen(陈焕君), Shaozhi Deng(邓少芝), Ningsheng Xu(许宁生) Room-temperature strong coupling between dipolar plasmon resonance in single gold nanorod and two-dimensional excitons in monolayer WSe2 2018 Chin. Phys. B 27 096101
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