中国物理B ›› 2020, Vol. 29 ›› Issue (9): 97302-097302.doi: 10.1088/1674-1056/ab99b3

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Dispersion of exciton-polariton based on ZnO/MgZnO quantum wells at room temperature

Huying Zheng(郑湖颖), Zhiyang Chen(陈智阳), Hai Zhu(朱海), Ziying Tang(汤梓荧), Yaqi Wang(王亚琪), Haiyuan Wei(韦海园), Chongxin Shan(单崇新)   

  1. 1 State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, China;
    2 Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
  • 收稿日期:2020-04-29 修回日期:2020-06-04 接受日期:2020-06-05 出版日期:2020-09-05 发布日期:2020-09-05
  • 通讯作者: Hai Zhu E-mail:zhuhai5@mail.sysu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11974433, 91833301, and 11974122), the Guangdong Natural Science Fund for Distinguished Young Scholars, China (Grant No. 2016A030306044), and the Science and Technology Program of Guangzhou, China (Grant No. 201707020014).

Dispersion of exciton-polariton based on ZnO/MgZnO quantum wells at room temperature

Huying Zheng(郑湖颖)1, Zhiyang Chen(陈智阳)1, Hai Zhu(朱海)1, Ziying Tang(汤梓荧)1, Yaqi Wang(王亚琪)1, Haiyuan Wei(韦海园)1, Chongxin Shan(单崇新)2   

  1. 1 State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou 510275, China;
    2 Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
  • Received:2020-04-29 Revised:2020-06-04 Accepted:2020-06-05 Online:2020-09-05 Published:2020-09-05
  • Contact: Hai Zhu E-mail:zhuhai5@mail.sysu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11974433, 91833301, and 11974122), the Guangdong Natural Science Fund for Distinguished Young Scholars, China (Grant No. 2016A030306044), and the Science and Technology Program of Guangzhou, China (Grant No. 201707020014).

摘要: We report observation of dispersion for coupled exciton-polariton in a plate microcavity combining with ZnO/MgZnO multi-quantum well (QW) at room temperature. Benefited from the large exciton binding energy and giant oscillator strength, the room-temperature Rabi splitting energy can be enhanced to be as large as 60 meV. The results of excitonic polariton dispersion can be well described using the coupling wave model. It is demonstrated that mode modification between polariton branches allowing, just by controlling the pumping location, to tune the photonic fraction in the different detuning can be investigated comprehensively. Our results present a direct observation of the exciton-polariton dispersions based on two-dimensional oxide semiconductor quantum wells, thus provide a feasible road for coupling of exciton with photon and pave the way for realizing novel polariton-type optoelectronic devices.

关键词: quantum wells, exciton, polariton, microcavity

Abstract: We report observation of dispersion for coupled exciton-polariton in a plate microcavity combining with ZnO/MgZnO multi-quantum well (QW) at room temperature. Benefited from the large exciton binding energy and giant oscillator strength, the room-temperature Rabi splitting energy can be enhanced to be as large as 60 meV. The results of excitonic polariton dispersion can be well described using the coupling wave model. It is demonstrated that mode modification between polariton branches allowing, just by controlling the pumping location, to tune the photonic fraction in the different detuning can be investigated comprehensively. Our results present a direct observation of the exciton-polariton dispersions based on two-dimensional oxide semiconductor quantum wells, thus provide a feasible road for coupling of exciton with photon and pave the way for realizing novel polariton-type optoelectronic devices.

Key words: quantum wells, exciton, polariton, microcavity

中图分类号:  (Quantum wells)

  • 73.21.Fg
71.35.-y (Excitons and related phenomena) 42.55.Sa (Microcavity and microdisk lasers) 71.36.+c (Polaritons (including photon-phonon and photon-magnon interactions))