Terahertz Near-field Metasurfaces and Superfocusing

被引：0
|
作者：
Han, Feng-Yuan [1 ]
Yin, Li-Zheng [1 ]
Liu, Pu-Kun [1 ]
机构：
[1] Peking Univ, Dept Elect, Beijing 100871, Peoples R China
来源：
2019 44TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2019年
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1109/irmmw-thz.2019.8874112
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this work, a near-field metasurface is designed to overcome diffraction limit and superfocus terahertz waves by elaborately arranging the proposed unit cells with super small electric sizes. The full width at half-maximum beam width reaches up to 0.067 lambda(0) (free-space wavelength) at a distance of 0.073 lambda(0) at 0.437 THz. The near-field metasurface is beneficial for subwavelength resolution imaging, photolithography, non-contact sensing, and other applications in the near field.
引用
收藏
页数：2
相关论文
共 50 条
  • [1] Dual-Field Superfocusing Based on Near-field Metasurfaces
    Han, Feng-Yuan
    Yin, Li-Zheng
    Wang, Yi-Dong
    Liu, Pu-Kun
    [J]. 2020 45TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2020,
  • [2] Terahertz Near-Field Metasurfaces: Amplitude-Phase Combined Steering and Electromagnetostatic Dual-Field Superfocusing
    Han, Feng-Yuan
    Liu, Pu-Kun
    [J]. ADVANCED OPTICAL MATERIALS, 2020, 8 (06)
  • [3] Near-Field Metasurfaces: Subdiffraction Focusing of Terahertz Waves
    Han, Feng-Yuan
    Yin, Li-Zheng
    Liu, Jiang-Yu
    Huang, Tie-Jun
    Liu, Pu-Kun
    [J]. 2019 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY (ICMMT 2019), 2019,
  • [4] Near-field manipulation of terahertz surface waves by metasurfaces [Invited]
    许全
    张学迁
    许悦红
    欧阳春梅
    栗岩锋
    韩家广
    张伟力
    [J]. Chinese Optics Letters, 2018, 16 (05) : 6 - 10
  • [5] Near-field imaging and spectroscopy of terahertz resonators and metasurfaces [Invited]
    Hale, Lucy L.
    Siday, Thomas
    Mitrofanov, Oleg
    [J]. OPTICAL MATERIALS EXPRESS, 2023, 13 (11) : 3068 - 3086
  • [6] Near-field manipulation of terahertz surface waves by metasurfaces [Invited]
    Xu, Quan
    Zhang, Xueqian
    Xu, Yuehong
    Ouyang, Chunmei
    Li, Yanfeng
    Han, Jiaguang
    Zhang, Weili
    [J]. CHINESE OPTICS LETTERS, 2018, 16 (05)
  • [7] Mapping the near-field propagation of surface plasmons on terahertz metasurfaces
    Xu, Yuehong
    Zhang, Xueqian
    Tian, Zhen
    Gu, Jianqiang
    Ouyang, Chunmei
    Li, Yanfeng
    Han, Jiaguang
    Zhang, Weili
    [J]. APPLIED PHYSICS LETTERS, 2015, 107 (02)
  • [8] Near-Field Localization in Plasmonic Superfocusing: A Nanoemitter on a Tip
    Neacsu, Catalin C.
    Berweger, Samuel
    Olmon, Robert L.
    Saraf, Laxmikant V.
    Ropers, Claus
    Raschke, Markus B.
    [J]. NANO LETTERS, 2010, 10 (02) : 592 - 596
  • [9] Near-field plates and the near zone of metasurfaces
    Merlin, Roberto
    [J]. NANOPHOTONICS, 2021, 10 (01) : 679 - 684
  • [10] Terahertz Near-Field Vortex Beams with Variable Intensity Profiles Based on Geometric Metasurfaces
    Zhu, Yang
    Zhou, Yiwen
    Fan, Zhiyuan
    Zang, Xiaofei
    Zhu, Yiming
    Zhuang, Songlin
    [J]. ADVANCED PHOTONICS RESEARCH, 2022, 3 (12):
12345