中国物理B ›› 2020, Vol. 29 ›› Issue (9): 94202-094202.doi: 10.1088/1674-1056/aba613

所属专题: SPECIAL TOPIC —Terahertz physics

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Active metasurfaces for manipulatable terahertz technology

Jing-Yuan Wu(吴静远), Xiao-Feng Xu(徐晓峰), Lian-Fu Wei(韦联福)   

  1. 1 Photonics Laboratory and Institute of Functional Materials, College of Science, Donghua University, Shanghai 201620, China;
    2 Information Quantum Technology Laboratory, School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
  • 收稿日期:2020-05-18 修回日期:2020-06-28 接受日期:2020-07-15 出版日期:2020-09-05 发布日期:2020-09-05
  • 通讯作者: Lian-Fu Wei E-mail:lfwei@dhu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11974290) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2232020D-44).

Active metasurfaces for manipulatable terahertz technology

Jing-Yuan Wu(吴静远)1, Xiao-Feng Xu(徐晓峰)1, Lian-Fu Wei(韦联福)1,2   

  1. 1 Photonics Laboratory and Institute of Functional Materials, College of Science, Donghua University, Shanghai 201620, China;
    2 Information Quantum Technology Laboratory, School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2020-05-18 Revised:2020-06-28 Accepted:2020-07-15 Online:2020-09-05 Published:2020-09-05
  • Contact: Lian-Fu Wei E-mail:lfwei@dhu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11974290) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2232020D-44).

摘要: Metasurface is a kind of two-dimensional metamaterial with specially designed sub-wavelength unit cells. It consists of single-layer or few-layer stacks of planar structures and possesses certain superior abilities to manipulate the propagating electromagnetic waves, including the terahertz (THz) ones. Compared with the usual passive THz metasurfaces whose optical properties are difficult to be controlled after fabrication, the active materials are highly desirable to enable dynamic and tunable control of THz waves. In this review, we briefly summarize the progress of active THz metasurfaces, from their physical mechanisms on carrier concentration modulations, phase transitions, magneto-optical effects, etc., for various possible THz applications mainly with low-dimensional materials, vanadium dioxide films, and superconductors.

关键词: metamaterial, active metasurface, terahertz wave modulations

Abstract: Metasurface is a kind of two-dimensional metamaterial with specially designed sub-wavelength unit cells. It consists of single-layer or few-layer stacks of planar structures and possesses certain superior abilities to manipulate the propagating electromagnetic waves, including the terahertz (THz) ones. Compared with the usual passive THz metasurfaces whose optical properties are difficult to be controlled after fabrication, the active materials are highly desirable to enable dynamic and tunable control of THz waves. In this review, we briefly summarize the progress of active THz metasurfaces, from their physical mechanisms on carrier concentration modulations, phase transitions, magneto-optical effects, etc., for various possible THz applications mainly with low-dimensional materials, vanadium dioxide films, and superconductors.

Key words: metamaterial, active metasurface, terahertz wave modulations

中图分类号:  (Optical processors, correlators, and modulators)

  • 42.79.Hp
41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 64.70.Nd (Structural transitions in nanoscale materials)