中国物理B ›› 2025, Vol. 34 ›› Issue (9): 97803-097803.doi: 10.1088/1674-1056/ade668

所属专题： TOPICAL REVIEW — Exciton physics: Fundamentals, materials and devices

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Electrically tuning exciton polaritons in a liquid crystal microcavity based on WS2 monolayer

Chenxi Yang(杨晨曦)1, Lanyu Huang(黄岚雨)2, Yujie Li(李宇杰)1, Xiaokun Zhai(翟晓坤)1,†, Qiang Ai(艾强)1, Chunzi Xing(邢淳梓)1, Xinmiao Yang(杨新苗)1, Yazhou Gu(谷亚舟)3, Peigang Li(李培刚)4, Zhitong Li(李志曈)3, Haitao Dai(戴海涛)1, Liefeng Feng(冯列峰)1, Linsheng Liu(刘林生)5, Xiao Wang(王笑)2, and Tingge Gao(高廷阁)1,‡   

  1. 1 Department of Physics, School of Science, Tianjin University, Tianjin 300072, China;
    2 College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
    3 State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    4 School of Integrated Circuits & State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    5 School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, China
  • 收稿日期:2025-04-29 修回日期:2025-06-08 接受日期:2025-06-20 出版日期:2025-08-21 发布日期:2025-09-09
  • 通讯作者: Xiaokun Zhai, Tingge Gao E-mail:xiaokunzhai@tju.edu.cn;tinggegao@tju.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 12174285 and 12474315). H. Dai also acknowledges support from the National Natural Science Foundation of China (Grant No. 62375200). X. Zhai acknowledges support from the National Natural Science Foundation of China (Grant No. 12504372) and the China Postdoctoral Science Foundation–Tianjin Joint Support Program (Grant No. 2025T003TJ). Z. Li acknowledges support from the National Natural Science Foundation of China (Grant No. 12404424).

Electrically tuning exciton polaritons in a liquid crystal microcavity based on WS2 monolayer

Chenxi Yang(杨晨曦)1, Lanyu Huang(黄岚雨)2, Yujie Li(李宇杰)1, Xiaokun Zhai(翟晓坤)1,†, Qiang Ai(艾强)1, Chunzi Xing(邢淳梓)1, Xinmiao Yang(杨新苗)1, Yazhou Gu(谷亚舟)3, Peigang Li(李培刚)4, Zhitong Li(李志曈)3, Haitao Dai(戴海涛)1, Liefeng Feng(冯列峰)1, Linsheng Liu(刘林生)5, Xiao Wang(王笑)2, and Tingge Gao(高廷阁)1,‡   

  1. 1 Department of Physics, School of Science, Tianjin University, Tianjin 300072, China;
    2 College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
    3 State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    4 School of Integrated Circuits & State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    5 School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, China
  • Received:2025-04-29 Revised:2025-06-08 Accepted:2025-06-20 Online:2025-08-21 Published:2025-09-09
  • Contact: Xiaokun Zhai, Tingge Gao E-mail:xiaokunzhai@tju.edu.cn;tinggegao@tju.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 12174285 and 12474315). H. Dai also acknowledges support from the National Natural Science Foundation of China (Grant No. 62375200). X. Zhai acknowledges support from the National Natural Science Foundation of China (Grant No. 12504372) and the China Postdoctoral Science Foundation–Tianjin Joint Support Program (Grant No. 2025T003TJ). Z. Li acknowledges support from the National Natural Science Foundation of China (Grant No. 12404424).

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摘要： Two-dimensional (2D) transition-metal dichalcogenide (TMD) monolayers based on become a promising platform to study photonics and optoelectronics. Electrically controlling the excitonic properties of TMD monolayers can be realized in different devices. In this work, we realize the strong coupling between the excitons of WS$_2$ monolayers and a photonic cavity mode in a liquid crystal microcavity. The formed exciton polaritons can be electrically tuned by applying voltage to the microcavity. Our work offers a way to study exciton-polariton manipulation based on TMD monolayers by electrical methods at room temperature.

关键词: transition-metal dichalcogenide (TMD), microcavity, liquid crystal, exciton polariton

Abstract: Two-dimensional (2D) transition-metal dichalcogenide (TMD) monolayers based on become a promising platform to study photonics and optoelectronics. Electrically controlling the excitonic properties of TMD monolayers can be realized in different devices. In this work, we realize the strong coupling between the excitons of WS$_2$ monolayers and a photonic cavity mode in a liquid crystal microcavity. The formed exciton polaritons can be electrically tuned by applying voltage to the microcavity. Our work offers a way to study exciton-polariton manipulation based on TMD monolayers by electrical methods at room temperature.

Key words: transition-metal dichalcogenide (TMD), microcavity, liquid crystal, exciton polariton

中图分类号:  (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)

  • 78.67.-n
78.55.-m (Photoluminescence, properties and materials) 71.36.+c (Polaritons (including photon-phonon and photon-magnon interactions)) 42.70.Df (Liquid crystals)