Multi-mode graphene based terahertz amplitude modulation enhanced by hollow cross H-structured metasurface

被引：9
|
作者：
Xia, Liangping [1 ,2 ]
Zou, Yixuan [2 ]
Zhang, Man [3 ]
Yan, Wenjuan [1 ]
Dang, Suihu [1 ]
Li, Songbai [1 ]
Yin, Shaoyun [2 ]
Cui, Hongliang [2 ]
机构：
[1] Yangtze Normal Univ, Sch Elect Informat Engn, Chongqing 408100, Peoples R China
[2] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China
[3] Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China
来源：
PHYSICA SCRIPTA | 2019年 / 94卷 / 12期
关键词：
modulation; terahertz; metamaterial; graphene; TRANSMISSION;
D O I：
10.1088/1402-4896/ab1bfe
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A graphene-metasurface based terahertz (THz) amplitude modulator enhanced with the hollow cross H array in a metal film is proposed. Based on the transmission line theory, the equivalent analysis model of the modulator is built. With the model, the multi-mode resonation excited by the metasurface is analyzed and the amplitude modulations of the THz transmission are discussed. By applying modulation voltage between the metallic metasurface and graphene film in the experiment, three enhanced modes in the transmission spectrum are observed and the maximum modulation depth is enhanced to 49.3% in the band of 0.1-1.8 THz. The experimental results exhibit a good agreement with the theory analysis.
引用
收藏
页数：5
相关论文
共 9 条
  • [1] Bidirectional multi-mode multiple vortex beams generator based on terahertz metasurface
    Zhang, Huiyun
    Sang, Xiaotong
    Li, Zhenkai
    Wang, Kun
    Lv, Xinyu
    Jiang, Chunyang
    Sun, Xiangzhe
    Meng, Lihua
    Zhang, Yuping
    OPTICS COMMUNICATIONS, 2024, 558
  • [2] Multi-beam multi-mode vortex beams generation based on metasurface in terahertz band
    Li Guo-Qiang
    Shi Hong-Yu
    Liu Kang
    Li Bo-Lin
    Yi Jian-Jia
    Zhang An-Xue
    Xu Zhuo
    ACTA PHYSICA SINICA, 2021, 70 (18)
  • [3] Ultra-broadband tunable terahertz metasurface absorber with multi-mode regulation based on artificial neural network
    Ding, Zhipeng
    Su, Wei
    Ye, Lipengan
    Zhou, Yuanhang
    Li, Wenlong
    Hu, Kun
    Tang, Bin
    Yao, Hongbing
    CHINESE JOURNAL OF PHYSICS, 2024, 90 : 519 - 527
  • [4] Wideband Tunable Cross Polarization Converter Based on a Graphene Metasurface With a Hollow-Carved "H" Array
    Chen, Ming
    Chang, Linzi
    Gao, Xi
    Chen, Hui
    Wang, Chongyun
    Xiao, Xiaofei
    Zhao, Deping
    IEEE PHOTONICS JOURNAL, 2017, 9 (05):
  • [5] Dual-Mode On-to-Off Modulation of Plasmon-Induced Transparency and Coupling Effect in Patterned Graphene-Based Terahertz Metasurface
    Zhimin Liu
    Enduo Gao
    Zhenbin Zhang
    Hongjian Li
    Hui Xu
    Xiao Zhang
    Xin Luo
    Fengqi Zhou
    Nanoscale Research Letters, 2020, 15
  • [6] Dual-Mode On-to-Off Modulation of Plasmon-Induced Transparency and Coupling Effect in Patterned Graphene-Based Terahertz Metasurface
    Liu, Zhimin
    Gao, Enduo
    Zhang, Zhenbin
    Li, Hongjian
    Xu, Hui
    Zhang, Xiao
    Luo, Xin
    Zhou, Fengqi
    NANOSCALE RESEARCH LETTERS, 2020, 15 (01):
  • [7] Single-layer graphene-based electrically-magnetically tunable multi-mode and broadband terahertz absorber: A comprehensive study
    Mahesh, Pulimi
    Panigrahy, Damodar
    Nayak, Chittaranjan
    OPTICAL MATERIALS, 2024, 149
  • [8] Single-layer graphene-based electrically-magnetically tunable multi-mode and broadband terahertz absorber: A comprehensive study
    Mahesh, Pulimi
    Panigrahy, Damodar
    Nayak, Chittaranjan
    Optical Materials, 2024, 149
  • [9] Ultra-broadband high-efficiency cross-polarization conversion and amplitude-phase manipulable multi-functional wavefront manipulation based on terahertz metasurface
    Cai, Chengxin
    Li, Yinfei
    He, Guangchen
    Meng, Hongmei
    Li, Mingxing
    Qin, Yao
    Wang, Qifu
    PHYSICA SCRIPTA, 2024, 99 (01)
1