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基于石墨烯互补超表面的可调谐太赫兹吸波体

张会云 黄晓燕 陈琦 丁春峰 李彤彤 吕欢欢 徐世林 张晓 张玉萍 姚建铨

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基于石墨烯互补超表面的可调谐太赫兹吸波体

张会云, 黄晓燕, 陈琦, 丁春峰, 李彤彤, 吕欢欢, 徐世林, 张晓, 张玉萍, 姚建铨

Tunable terahertz absorber based on complementary graphene meta-surface

Zhang Hui-Yun, Huang Xiao-Yan, Chen Qi, Ding Chun-Feng, Li Tong-Tong, Lü Huan-Huan, Xu Shi-Lin, Zhang Xiao, Zhang Yu-Ping, Yao Jian-Quan
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  • 通过在石墨烯超表面设计周期性切条, 实现了基于石墨烯互补超表面的可调谐太赫兹吸波体. 通过改变外加电压来改变石墨烯的费米能级, 吸波体实现频率可调谐特性. 研究了石墨烯费米能级、结构尺寸对超材料吸波体吸收特性的影响, 并利用多重反射理论研究了其物理机理并且证明了模拟方法的可行性. 研究结果表明: 当石墨烯费米能级取0.6 eV, 基底厚度13 m, 石墨烯上切条长宽分别为2.9 m, 0.1 m 时, 吸波体在1.865 THz可以实现99.9%的完美吸收; 石墨烯费米能级从0.4 eV增大到0.9 eV, 吸波体共振频率从1.596 THz 蓝移到2.168 THz, 且伴随共振吸收率的改变, 吸收率在0.6 eV时达到最大; 通过改变费米能级实现的最大吸收率调制度达84.55%.
    Recently, metamaterials have attracted considerable attention because of their unique properties and potential applications in many areas, such as in bio-sensing, imaging, and communication. Among these researches, the metamaterial absorber has aroused much interest of researchers. The metamaterial absorber is important due to a broad range of potential application to solar energy, sensing, coatings for reducing the reflection, and selective thermal emitters. As a two-dimensional honeycomb structure composed of a single layer carbon atom, graphene is a promising candidate for tuning metamaterials and plasmonic structures due to its unique properties which differ substantially from those of metal and semiconductors. In this paper, we propose a tunable terahertz absorber based on graphene complementary metamaterial structure by removing periodic cut-wires on the graphene meta-surface. On the basis of the tunability of graphene conductivity, the absorber possesses a frequency tunable characteristic resulting from the change of graphene Femi level by altering the applied voltage. Here, we mainly study the influences of Fermi level of graphene and the size of the structure on the absorption characteristic of this metamaterial absorber. We finally obtain the corresponding Femi level and structural size under the perfect absorption condition. In addition, we utilize the multiple reflection theory to explore the physical mechanism, and verify the feasibility of the simulation method at the same time. The research indicates that the absorber can achieve 99.9% perfect absorption at 1.865 THz when the graphene Femi level is 0.6 eV, the thickness of substrate is 13 m, and the length and width of slit are 2.9 m and 0.1 m, respectively. When graphene Femi level increases from 0.4 eV to 0.9 eV, the resonance frequency of the absorber is blue-shifted from 1.596 THz to 2.168 THz. Meanwhile, the absorption rate increases from 84.68% at 0.4 eV to a maximum value of 99.9% at 0.6 eV, then gradually decreases to 86.63% at 0.9 eV. The maximum modulation of the absorption rate is 84.55% by varying the Femi level. When the thickness of substrate increases, the resonant frequency is red-shifted. The resonant frequency is blue-shifted when both the width and the length of the cut-wire on graphene increase. On the basis of the proposed graphene meta-surface absorber, one can gain different resonant frequencies by adjusting the structure geometric size and graphene Femi level. The graphene complementary structure can also be designed into different patterns to achieve the purpose of practical application.
      通信作者: 张会云, sdust_thz@126.com;qchen1103@163.com ; 陈琦, sdust_thz@126.com;qchen1103@163.com
    • 基金项目: 山东省自然科学基金(批准号: ZR2012FM011)、青岛市创新领军人才项目(批准号: 13-CX-25)、中国工程物理研究院太赫兹科学技术基金(批准号: 201401)、青岛经济技术开发区重点科技计划(批准号: 2013-1-64)和国家留学基金资助的课题.
      Corresponding author: Zhang Hui-Yun, sdust_thz@126.com;qchen1103@163.com ; Chen Qi, sdust_thz@126.com;qchen1103@163.com
    • Funds: Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. ZR2012FM011), the Qingdao City Innovative Leading Talent Plan, China (Grant No. 13-CX-25), the CAEP THz Science and Technology Foundation (Grant No. 201401), the Science and Technology Project of Qingdao Economic and Technical Development Zone, China (Grant No. 2013-1-64), and the China Scholarship Council.
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    Andryieuski A, Lavrinenko A V 2013 Opt. Express 21 9144

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    Zhang Y, Feng Y, Zhu B, Zhao J, Jiang T 2014 Opt. Express 22 22743

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    [33]

    Fan Y, Shen N H, Koschny T, Soukoulis C M 2015 ACS Photon. 2 151

    [34]

    Chen H T 2012 Opt. Express 20 7165

    [35]

    Hanson G W 2008 J. Appl. Phys. 103 064302

    [36]

    Gusynin V P, Sharapov S G, Carbotte J P 2007 J. Phys. Condens. Matter 19 026222

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    Yao Y, Kats M A, Genevet P, Yu N, Song Y, Kong J, Capasso F 2013 Nano Lett. 13 1257

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  • [1]

    Landy N I, Sajuyigbe S, Mock J J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402

    [2]

    Zhang X C 2002 Phys. Med. Biol. 47 3667

    [3]

    Yahiaoui R, Guillet J P, Miollis F D, Mounaix P 2013 Opt. Lett. 38 4988

    [4]

    Alves F, Grbovic D, Keaney B, Lavrik N V, Karunasiri G 2013 Opt. Express 21 13256

    [5]

    Tao H, Landy N I, Bingham C M, Zhang X, Averitt R D, Padilla W J 2008 Opt. Express 16 7181

    [6]

    Wen Q Y, Zhang H W, Xie Y S, Yang Q H, Liu Y L 2009 Appl. Phys. Lett. 95 241111

    [7]

    Ma Y, Chen Q, Grant J, Saha S C, Khalid A, Cumming D R S 2011 Opt. Lett. 36 945

    [8]

    Wen Y Z, Ma W, Bailey J, Matmon G, Yu X M, Aeppli G 2013 Appl. Opt. 52 4536

    [9]

    Ma Y B, Zhang H W, Li Y X, Wang Y C, Lai W E, Li J 2014 Chin. Phys. B 23 058102

    [10]

    Shen X P, Yang Y, Zang Y Z, Gu J Q, Han J G, Zhang W L, Cui T J 2012 Appl. Phys. Lett. 101 154102

    [11]

    Gu C, Qu S B, Pei Z B, Xu Z, Liu J, Gu W 2011 Chin. Phys. B 20 017801

    [12]

    Dai Y H, Chen X L, Zhao Q, Zhang J H, Chen H W, Yang C R 2013 Acta Phys. Sin. 62 064101 (in Chinese) [戴雨涵, 陈小浪, 赵强, 张继华, 陈宏伟, 杨传仁 2013 物理学报 62 064101]

    [13]

    Mo M M, Wen Q Y, Chen Z, Yang Q H, Li S, Jing Y L, Zhang H W 2013 Acta Phys. Sin. 62 237801 (in Chinese) [莫漫漫, 文岐业, 陈智, 杨青慧, 李胜, 荆玉兰, 张怀武 2013 物理学报 62 237801]

    [14]

    Ma Y, Chen Q, Grant J, Saha S, Khalid A, Cumming D R S 2011 Opt. Lett. 36 3476

    [15]

    Ye Y Q, Jin Y, He S L 2010 J. Opt. Soc. Am. B 27 498

    [16]

    Wang B X, Wang L L, Wang G Z, Huang W Q, Li X F, Zhai X 2014 IEEE Photon. Technol. Lett. 26 111

    [17]

    Huang L, Chowdhury D R, Ramani S, Reiten M T, Luo S N, Taylor A J, Chen H T 2012 Opt. Lett. 37 154

    [18]

    Wen Y Z, Ma W, Bailey J, Matmon G, Yu X M, Aeppli G 2014 Opt. Lett. 39 1589

    [19]

    Liu C, Ye J, Zhang Y 2010 Opt. Commun. 283 865

    [20]

    Zhou H, Ding F, Ji Y, He S L 2011 Prog. Electromagn. Res. 119 449

    [21]

    Hu F R, Qian Y X, Li Z, Niu J H, Nie K, Xiong X M, Zhang W T, Peng Z Y 2013 J. Opt. 15 055101

    [22]

    Alaee R, Farhat M, Rockstuhl C, Lederer F 2012 Opt. Express 20 28017

    [23]

    Andryieuski A, Lavrinenko A V 2013 Opt. Express 21 9144

    [24]

    VasićB, GajićR 2013 Appl. Phys. Lett. 103 261111

    [25]

    Woo J M, Kim M S, Kim H W, Jang J H 2014 Appl. Phys. Lett. 104 081106

    [26]

    Amin M, Farhat M, Bağci H 2013 Opt. Express 21 29938

    [27]

    He S, Chen T 2013 IEEE Trans. Terahertz Sci. Technol. 3 757

    [28]

    Xu B Z, Gu C, Li Z 2013 Opt. Express 21 23803

    [29]

    Wu B, Tuncer H M, Naeem M, Yang B, Cole M T, Milne W I, Hao Y 2014 Sci. Rep. 4 4130

    [30]

    Zhu Z H, Guo C C, Zhang J F, Liu K, Yuan X D, Qin S Q 2015 Appl. Phys. Express 8 015102

    [31]

    Zhang Y, Feng Y, Zhu B, Zhao J, Jiang T 2014 Opt. Express 22 22743

    [32]

    Zhang Y P, Li T T, L H H, Huang X Y, Zhang X, Xu S L, Zhang H Y 2015 Chin. Phys. Lett. 32 068101

    [33]

    Fan Y, Shen N H, Koschny T, Soukoulis C M 2015 ACS Photon. 2 151

    [34]

    Chen H T 2012 Opt. Express 20 7165

    [35]

    Hanson G W 2008 J. Appl. Phys. 103 064302

    [36]

    Gusynin V P, Sharapov S G, Carbotte J P 2007 J. Phys. Condens. Matter 19 026222

    [37]

    Yao Y, Kats M A, Genevet P, Yu N, Song Y, Kong J, Capasso F 2013 Nano Lett. 13 1257

    [38]

    Wunsch B, Stauber T, Sols F, Guinea F 2006 New J. Phys. 8 318

    [39]

    Hwang E H, Sarma S D 2007 Phys. Rev. B 75 205418

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出版历程
  • 收稿日期:  2015-07-13
  • 修回日期:  2015-09-17
  • 刊出日期:  2016-01-05

基于石墨烯互补超表面的可调谐太赫兹吸波体

  • 1. 山东科技大学电子通信与物理学院, 青岛市太赫兹技术重点实验室, 青岛 266590;
  • 2. 中国工程物理研究院电子工程研究所, 绵阳 621900;
  • 3. 天津大学精密仪器与光电子工程学院, 激光与光电子研究所, 天津 300072
  • 通信作者: 张会云, sdust_thz@126.com;qchen1103@163.com ; 陈琦, sdust_thz@126.com;qchen1103@163.com
    基金项目: 山东省自然科学基金(批准号: ZR2012FM011)、青岛市创新领军人才项目(批准号: 13-CX-25)、中国工程物理研究院太赫兹科学技术基金(批准号: 201401)、青岛经济技术开发区重点科技计划(批准号: 2013-1-64)和国家留学基金资助的课题.

摘要: 通过在石墨烯超表面设计周期性切条, 实现了基于石墨烯互补超表面的可调谐太赫兹吸波体. 通过改变外加电压来改变石墨烯的费米能级, 吸波体实现频率可调谐特性. 研究了石墨烯费米能级、结构尺寸对超材料吸波体吸收特性的影响, 并利用多重反射理论研究了其物理机理并且证明了模拟方法的可行性. 研究结果表明: 当石墨烯费米能级取0.6 eV, 基底厚度13 m, 石墨烯上切条长宽分别为2.9 m, 0.1 m 时, 吸波体在1.865 THz可以实现99.9%的完美吸收; 石墨烯费米能级从0.4 eV增大到0.9 eV, 吸波体共振频率从1.596 THz 蓝移到2.168 THz, 且伴随共振吸收率的改变, 吸收率在0.6 eV时达到最大; 通过改变费米能级实现的最大吸收率调制度达84.55%.

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