中国物理B ›› 2024, Vol. 33 ›› Issue (4): 47103-047103.doi: 10.1088/1674-1056/ad23d2

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Actively tuning anisotropic light—matter interaction in biaxial hyperbolic material α-MoO3 using phase change material VO2 and graphene

Kun Zhou(周昆)1,2, Yang Hu(胡杨)3,4, Biyuan Wu(吴必园)3,4, Xiaoxing Zhong(仲晓星)1,2,†, and Xiaohu Wu(吴小虎)3,‡   

  1. 1 School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China;
    2 Key Laboratory of Gas and Fire Control for Coal Mines(Ministry of Education), China University of Mining and Technology, Xuzhou 221116, China;
    3 Shandong Institute of Advanced Technology, Jinan 250100, China;
    4 School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China
  • 收稿日期:2023-09-11 修回日期:2024-01-10 接受日期:2024-01-30 出版日期:2024-03-19 发布日期:2024-03-27
  • 通讯作者: Xiaoxing Zhong, Xiaohu Wu E-mail:zhxxcumt@cumt.edu.cn;xiaohu.wu@iat.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 52204258 and 52106099), the Postdoctoral Research Foundation of China (Grant No. 2023M743779), the Fundamental Research Funds for the Central Universities (Grant No. 2022QN1017), the Key Research Development Projects in Xinjiang Uygur Autonomous Region (Grant No. 2022B03003-3), and the Shandong Provincial Natural Science Foundation (Grant No. ZR2020LLZ004).

Actively tuning anisotropic light—matter interaction in biaxial hyperbolic material α-MoO3 using phase change material VO2 and graphene

Kun Zhou(周昆)1,2, Yang Hu(胡杨)3,4, Biyuan Wu(吴必园)3,4, Xiaoxing Zhong(仲晓星)1,2,†, and Xiaohu Wu(吴小虎)3,‡   

  1. 1 School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China;
    2 Key Laboratory of Gas and Fire Control for Coal Mines(Ministry of Education), China University of Mining and Technology, Xuzhou 221116, China;
    3 Shandong Institute of Advanced Technology, Jinan 250100, China;
    4 School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2023-09-11 Revised:2024-01-10 Accepted:2024-01-30 Online:2024-03-19 Published:2024-03-27
  • Contact: Xiaoxing Zhong, Xiaohu Wu E-mail:zhxxcumt@cumt.edu.cn;xiaohu.wu@iat.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 52204258 and 52106099), the Postdoctoral Research Foundation of China (Grant No. 2023M743779), the Fundamental Research Funds for the Central Universities (Grant No. 2022QN1017), the Key Research Development Projects in Xinjiang Uygur Autonomous Region (Grant No. 2022B03003-3), and the Shandong Provincial Natural Science Foundation (Grant No. ZR2020LLZ004).

摘要: Anisotropic hyperbolic phonon polaritons (PhPs) in natural biaxial hyperbolic material α-MoO3 has opened up new avenues for mid-infrared nanophotonics, while active tunability of α-MoO3 PhPs is still an urgent problem necessarily to be solved. In this study, we present a theoretical demonstration of actively tuning α-MoO3 PhPs using phase change material VO2 and graphene. It is observed that α-MoO3 PhPs are greatly dependent on the propagation plane angle of PhPs. The insulator-to-metal phase transition of VO2 has a significant effect on the hybridization PhPs of the α-MoO3/VO2 structure and allows to obtain actively tunable α-MoO3 PhPs, which is especially obvious when the propagation plane angle of PhPs is 90°. Moreover, when graphene surface plasmon sources are placed at the top or bottom of α-MoO3 in α-MoO3/VO2 structure, tunable coupled hyperbolic plasmon—phonon polaritons inside its Reststrahlen bands (RBs) and surface plasmon—phonon polaritons outside its RBs can be achieved. In addition, the above-mentioned α-MoO3-based structures also lead to actively tunable anisotropic spontaneous emission (SE) enhancement. This study may be beneficial for realization of active tunability of both PhPs and SE of α-MoO3, and facilitate a deeper understanding of the mechanisms of anisotropic light—matter interaction in α-MoO3 using functional materials.

关键词: light—matter interaction, hyperbolic material, phase change material, graphene

Abstract: Anisotropic hyperbolic phonon polaritons (PhPs) in natural biaxial hyperbolic material α-MoO3 has opened up new avenues for mid-infrared nanophotonics, while active tunability of α-MoO3 PhPs is still an urgent problem necessarily to be solved. In this study, we present a theoretical demonstration of actively tuning α-MoO3 PhPs using phase change material VO2 and graphene. It is observed that α-MoO3 PhPs are greatly dependent on the propagation plane angle of PhPs. The insulator-to-metal phase transition of VO2 has a significant effect on the hybridization PhPs of the α-MoO3/VO2 structure and allows to obtain actively tunable α-MoO3 PhPs, which is especially obvious when the propagation plane angle of PhPs is 90°. Moreover, when graphene surface plasmon sources are placed at the top or bottom of α-MoO3 in α-MoO3/VO2 structure, tunable coupled hyperbolic plasmon—phonon polaritons inside its Reststrahlen bands (RBs) and surface plasmon—phonon polaritons outside its RBs can be achieved. In addition, the above-mentioned α-MoO3-based structures also lead to actively tunable anisotropic spontaneous emission (SE) enhancement. This study may be beneficial for realization of active tunability of both PhPs and SE of α-MoO3, and facilitate a deeper understanding of the mechanisms of anisotropic light—matter interaction in α-MoO3 using functional materials.

Key words: light—matter interaction, hyperbolic material, phase change material, graphene

中图分类号:  (Polaritons (including photon-phonon and photon-magnon interactions))

  • 71.36.+c
63.22.Rc (Phonons in graphene) 63.20.D- (Phonon states and bands, normal modes, and phonon dispersion)