光学微腔中WSe2激子与光子耦合效应的研究

doi:10.3969/j.issn.1000-5641.202022003

华东师范大学学报（自然科学版） ›› 2021, Vol. 2021 ›› Issue (1): 112-118.doi: 10.3969/j.issn.1000-5641.202022003

光学微腔中WSe₂激子与光子耦合效应的研究

梁爽(), 钟义驰, 谢微*()

华东师范大学物理与电子科学学院, 上海　200241

收稿日期:2020-03-06 出版日期:2021-01-25 发布日期:2021-01-25
通讯作者: 谢微 E-mail:13546467031@163.com;wxie@phy.ecnu.edu.cn
基金资助:
国家自然科学基金(11674097)

Coupling behavior of WSe₂ exciton and photon in an optical microcavity

Shuang LIANG(), Yichi ZHONG, Wei XIE*()

School of Physics and Electronic Science, East China Normal University, Shanghai　200241, China

Received:2020-03-06 Online:2021-01-25 Published:2021-01-25
Contact: Wei XIE E-mail:13546467031@163.com;wxie@phy.ecnu.edu.cn

摘要/Abstract

摘要：

研究了300 K下, 自制的法布里-珀罗(Fabry–Pérot, F-P)半导体微腔中, 光场与WSe₂单分子薄膜激子之间的强弱耦合作用. 利用集成角分辨功能的显微荧光/白光反射光谱系统研究了样品的光学性质, 并在强耦合区间内看到了激子极化激元的形成, 对应的拉比分裂能量为46.7 meV. 理论拟合结果跟实验现象吻合, 为激子极化激元相干特性的进一步研究奠定了基础, 也为未来的工业光电器件应用提供了思路.

关键词: 半导体微腔, 单分子层薄膜, 强耦合, 激子极化激元

Abstract:

In this paper, we study the strong and weak coupling between excitons of a WSe₂ monomolecular thin film and a light field in a self-made Fabry–Pérot semiconductor microcavity at 300 K. The optical properties of the sample were studied using a micro-fluorescence / white light reflection spectroscopy system with integrated angular resolution; the formation of exciton polaritons was observed in the strong coupling region, corresponding to a Rabi splitting energy of 46.7 meV. The theoretical fitting results agree with the experimental phenomena. This lays the foundation for further research on the coherent properties of exciton polaritons, and the study also provide ideas for the application of industrial optoelectronic devices in the future..

Key words: semiconductor microcavity, monomolecular thin film, strong coupling, polariton

中图分类号:

O472.3

梁爽, 钟义驰, 谢微. 光学微腔中WSe₂激子与光子耦合效应的研究[J]. 华东师范大学学报（自然科学版）, 2021, 2021(1): 112-118.

Shuang LIANG, Yichi ZHONG, Wei XIE. Coupling behavior of WSe₂ exciton and photon in an optical microcavity[J]. Journal of East China Normal University(Natural Science), 2021, 2021(1): 112-118.

图/表 3

参考文献 31

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光学微腔中WSe₂激子与光子耦合效应的研究

Coupling behavior of WSe₂ exciton and photon in an optical microcavity

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