光学微腔中WSe_(2)激子与光子耦合效应的研究  

Coupling behavior of WSe_(2) exciton and photon in an optical microcavity

作　　者：梁爽[1] 钟义驰 谢微[1] LIANG Shuang;ZHONG Yichi;XIE Wei(School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China)

机构地区：[1]华东师范大学物理与电子科学学院,上海200241

出　　处：《华东师范大学学报（自然科学版）》2021年第1期112-118,共7页Journal of East China Normal University(Natural Science)

基　　金：国家自然科学基金(11674097)。

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.In this paper, we study the strong and weak coupling between excitons of a WSe_(2) monomolecular thin film and a light field in a self-made Fabry–Pérot semiconductor microcavity at300 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..

关 键 词：半导体微腔 单分子层薄膜 强耦合 激子极化激元 

分 类 号：O472.3[理学—半导体物理]