Dynamically tunable high-efficiency broadband terahertz linear polarization converter based on Dirac semimetal metamaterials

被引：11
|
作者：
Meng, Wanli [1 ]
Hou, Baoyu [1 ]
Cao, Qiuhong [1 ]
Lin, Hongmei [1 ]
Zhou, Wei [1 ]
Li, Zhaoxin [1 ]
Li, Dehua [1 ]
机构：
[1] Shandong Univ Sci & Technol, Qingdao Key Lab Terahertz Technol, Coll Elect & Informat Engn, Qingdao, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2020年 / 62卷 / 08期
关键词：
Dirac semimetal; dynamic tunability; metamaterial; polarization converter; terahertz; REFRACTIVE-INDEX;
D O I：
10.1002/mop.32239
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：
An electrically-tunable polarization converter with a dynamic range of 2.026 to 2.481 THz is designed and simulated in this work. A dumbbell-like Dirac semimetal metamaterial is fabricated and attached to a Teflon plate, with a perfect electric conductor as the substrate. Simulation results show that for a 22-mu m-thick Teflon plate and a Fermi level is 60 meV, the polarization conversion rate reaches 100% at the two resonance frequencies of 2.072 and 2.428 THz. Moreover, the polarization conversion rate exceeds 85% in the frequency range of 2.026 to 2.481 THz.
引用
收藏
页码：2703 / 2707
页数：5
相关论文
共 50 条
  • [1] Ultra-broadband and high-efficiency terahertz reflective metamaterials polarization converter
    Bai, Jinjun
    Chen, Tingting
    Wang, Shasha
    Xu, Wei
    Chang, Shengjiang
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2023, 129 (09):
  • [2] Ultra-broadband and high-efficiency terahertz reflective metamaterials polarization converter
    Jinjun Bai
    Tingting Chen
    Shasha Wang
    Wei Xu
    Shengjiang Chang
    Applied Physics A, 2023, 129
  • [3] Graphene-Based High-Efficiency Broadband Tunable Linear-to-Circular Polarization Converter for Terahertz Waves
    Quader, Sakib
    Zhang, Jin
    Akram, Muhammad Rizwan
    Zhu, Weiren
    IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2020, 26 (05)
  • [4] Broadband Switchable Bifunction Terahertz Polarization Converter Based on Dirac Semimetal
    Yi Nanning
    Zong Rong
    Qian Rongrong
    LASER & OPTOELECTRONICS PROGRESS, 2022, 59 (17)
  • [5] Dynamically tunable broadband linear-to-circular polarization converter based on Dirac semimetals
    Dai, Linlin
    Zhang, Yuping
    Guo, Xiaohan
    Zhao, Yukun
    Liu, Shande
    Zhang, Huiyun
    OPTICAL MATERIALS EXPRESS, 2018, 8 (10): : 3238 - 3249
  • [6] Tunable terahertz Dirac semimetal metamaterials
    He, Xiaoyong
    Liu, Feng
    Lin, Fangting
    Shi, Wangzhou
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2021, 54 (23)
  • [7] Broadband Tunable Terahertz Polarizers Based on Dirac Semimetal
    Tian Yuanshi
    Guo Xiaohan
    Dai Linlin
    Zhang Huiyun
    Zhang Yuping
    CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG, 2019, 46 (06):
  • [8] Broadband Tunable Terahertz Polarizers Based on Dirac Semimetal
    Tian Y.
    Guo X.
    Dai L.
    Zhang H.
    Zhang Y.
    Zhongguo Jiguang/Chinese Journal of Lasers, 2019, 46 (06):
  • [9] Broadband dynamically unable terahertz absorber based on a Dirac semimetal
    Xiong, Han
    Shen, Qi
    Ji, Qing
    APPLIED OPTICS, 2020, 59 (16) : 4970 - 4976
  • [10] Terahertz broadband polarization converter based on metamaterials
    Li, Yonghua
    Guo Zhongzhao
    2017 INTERNATIONAL CONFERENCE ON OPTICAL INSTRUMENTS AND TECHNOLOGY - MICRO/NANO PHOTONICS: MATERIALS AND DEVICES, 2017, 10622
12345