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基于二氧化钒的太赫兹编码超表面

李佳辉 张雅婷 李吉宁 李杰 李继涛 郑程龙 杨悦 黄进 马珍珍 马承启 郝璇若 姚建铨

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基于二氧化钒的太赫兹编码超表面

李佳辉, 张雅婷, 李吉宁, 李杰, 李继涛, 郑程龙, 杨悦, 黄进, 马珍珍, 马承启, 郝璇若, 姚建铨

Terahertz coding metasurface based vanadium dioxide

Li Jia-Hui, Zhang Ya-Ting, Li Ji-Ning, Li Jie, Li Ji-Tao, Zheng Cheng-Long, Yang Yue, Huang Jin, Ma Zhen-Zhen, Ma Cheng-Qi, Hao Xuan-Ruo, Yao Jian-Quan
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  • 由于受电子器件尺寸和加工技术的限制, 在太赫兹波段很少有主动调控的编码超表面. 为了提高太赫兹编码超表面的灵活性, 本文选择相变材料二氧化钒进行主动调控. 分析了二氧化钒相变前(绝缘态)和相变后(金属态)两种态对单元结构幅值和相位的影响, 设计出一种能够主动调控的基于二氧化钒的1 bit太赫兹编码超表面, 该结构由二氧化钒、聚酰亚胺和铝构成, 不仅可以实现编码超表面调节电磁波波束的基本功能, 而且对于同一编码序列还能通过温控二氧化钒在1.1 THz实现两种远场波束的切换, 同样对于同一编码序列也能通过温控在1.1 THz实现两种近场聚焦焦点的切换. 这种基于二氧化钒对相位的影响而设计的编码超表面为灵活调控太赫兹波提供一种新的途径, 将在太赫兹传输、成像和通信等方面有着重大的应用前景.
    Terahertz (THz) has the characteristics of non ionization, penetration, water absorption, high resolution, etc. It has shown an important application prospect in many fields, such as non-destructive testing, imaging and communication. However, THz is in the transition frequency band ranges from macro-electronics to micro-photonics, so, it belongs to the interdisciplinary field, forming the “terahertz gap” in electromagnetic wave. In recent years, with the continuous development and improvement of THz radiation source and detection technology, the THz modulation technology has gradually aroused the interest of researchers. Metamaterials with many properties that natural materials do not possess provide a common way to control THz. The two-dimensional structure of a metamaterial is called a metasurface. The coding metasurface encodes the phase digitally so that the electromagnetic wave can be regulated. It is proposed that it is first in the microwave band and then extended to the THz band. In the microwave band, the number, direction and amplitude of the far-field beams can be changed dynamically by programming, which is connected with the integrated circuit such as FPGA by using diodes, but due to the limitation of diode size and micro-nano manufacturing technology, the programmable metasurface in microwave band cannot be well used in THz band. In order to improve the flexibility of THz coding metasurface, in this paper we choose the phase change material vanadium dioxide (VO2) to active modulation coding metasurface. In this paper, we analyze the VO2’s insulating state before the phase transformation and metallic state after the phase transformation. Then designing an active control 1 bit coding metasurface by using the influence of the two states on the amplitude and phase of the unit structure, which is composed of VO2, polyimide and aluminum, can not only realize the basic function of coding metasurface adjusting the electromagnetic wave beams, but alsoimplement the switching of two kinds of far-field beams at 1.1 THz for the same coding sequence by thermal stimulated VO2. The coding metasurface also realizes the switching between two near-field focal points at 1.1 THz for the same coding sequence. Based on the effect of VO2 on the phase, this coding metasurface provides a new way to adjust and control the THz wave flexibly, and will have a great application prospect in THz transmission, imaging and communication.
      通信作者: 张雅婷, yating@tju.edu.cn
    • 基金项目: 国家重点研发计划(批准号: 2017YFA0700202)和国家自然科学基金(批准号: 61675147, 61735010, 91838301)资助的课题
      Corresponding author: Zhang Ya-Ting, yating@tju.edu.cn
    • Funds: Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0700202) and National Natural Science Foundation of China (Grant Nos. 61675147, 61735010, 91838301)
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    李晓楠, 周璐, 赵国忠 2019 物理学报 68 238101Google Scholar

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    Heljo V P, Nordberg A, Tenho M, Virtanen T, Jouppila K, Salonen J, Maunu S L, Juppo A M 2012 Pharm. Res. 29 2684Google Scholar

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    Pickwell E, Wallace V P 2006 J. Phys. D: Appl. Phys. 39 R301Google Scholar

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    Guillet J P, Recur B, Frederique L, Bousquet B, Canioni L, Manek-Honninger I, Desbarats P, Mounaix P 2014 J. Infrared Milli. Terahz Waves 35 382Google Scholar

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    陈实, 胡伟东 2017 无线电通信技术 43 01Google Scholar

    Chen S, Hu W D 2017 Radio Commun. Technol. 43 01Google Scholar

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    姚建铨, 迟楠, 杨鹏飞, 崔海霞, 汪静丽, 李九生, 徐德刚, 丁欣 2009 中国激光 36 2213Google Scholar

    Yao J Q, Chi N, Yang P F, Cui H X, Wang J L, Li J S, Xu D G, Ding X 2009 Chin. J. Las. 36 2213Google Scholar

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    Köhler R, Tredicucci A, Beltram F, Beere H E, Linfield E H, Davies A G, Ritchie D A, Iotti R C, Rossi F 2002 Nature 417 156Google Scholar

    [11]

    Exter M V, Fattinger C, Grischkowsky D 1989 Appl. Phys. Lett. 55 337Google Scholar

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    Sinyukov A M, Liu Z W, Hor Y L, Su K, Barat R B, Gary D E, Michalopoulou Z H, Zorych I, Federici J F, Zimdars D 2008 Opt. Lett. 33 1593Google Scholar

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    Yan F, Yu C, Park H, Parrott E P J, Pickwell-MacPherson E 2013 J. Infrared Milli. Terahz Waves 34 489Google Scholar

    [14]

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

    [15]

    Mendis R, Nag A, Chen F, Mittleman D M 2010 Appl. Phys. Lett. 97 131106Google Scholar

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    Grady N K, Heyes J E, Chowdhury D R, Zeng Y, Reiten M T, Azad A K, Taylor A J, Dalvit D A R, Chen H T 2013 Science 340 1304Google Scholar

    [17]

    Zhang H F, Zhang X Q, Xu Q, Tian C X, Wang Q, Xu Y H, Li Y F, Gu J Q, Tian Z, Ouyang C M, Zhang X X, Hu C, Han J G, Zhang W L 2018 Adv. Opt. Mater. 6 1700773Google Scholar

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    王越, 冷雁冰, 王丽, 董连和, 刘顺瑞, 王君, 孙艳军 2018 物理学报 67 097801Google Scholar

    Wang Y, Leng Y B, Wang L, Dong L H, Liu S R, Wang J, Sun Y J 2018 Acta Phys. Sin. 67 097801Google Scholar

    [19]

    周璐, 赵国忠, 李晓楠 2019 物理学报 68 108701Google Scholar

    Zhou L, Zhao G Z, Li X N 2019 Acta Phys. Sin. 68 108701Google Scholar

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    Yu N F, Genevet P, Kats M A, Aieta F, Tetienne J P, Capasso F, Gaburro Z 2011 Science 334 333Google Scholar

    [21]

    Nemati A, Wang Q, Hong M H, Teng J H 2018 Opto-Electron. Adv. 1 180009Google Scholar

    [22]

    Deng Z L, Deng J H, Zhuang X, Wang S, Li K F, Wang Y, Chi Y H, Ye X, Xu J, Wang G P, Zhao R K, Wang X L, Cao Y Y, Cheng X, Li G X, Li X P 2018 Nano Lett. 18 2885Google Scholar

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    Deng Z L, Jin M K, Ye X, Wang S, Shi T, Deng J H, Mao N B, Cao Y Y, Guan B O, Alu A, Li G X, Li X P 2020 Adv. Funct. Mater. 30 1910610Google Scholar

    [24]

    Deng Z L, Cao Y Y, Li X P, Wang G P 2018 Photonics Res. 6 443Google Scholar

    [25]

    Cui T J, Qi M Q, Wan X, Zhao J, Cheng Q 2014 Light-sci. Appl. 3 e218Google Scholar

    [26]

    Liu S, Zhang L, Yang Q L, Xu Q, Yang Y, Noor A, Zhang Q, Iqbal S, Wan X, Tian Z, Tang W X, Cheng Q, Hang J G, Zhang W L, Cui T J 2016 Adv. Opt. Mater. 4 1965Google Scholar

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    Li J, Zhang Y T, Li J N, Yan X, Liang L J, Zhang Z, Huang J, Li J H, Yang Y, Yao J Q 2019 Nanoscale 11 5746Google Scholar

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    Fan F, Gu W H, Chen S, Wang X H, Chang S J 2013 Opt. Lett. 38 1582Google Scholar

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    Zhu Y H, Zhao Y, Holtz M, Fan Z Y, Bernussi A A 2012 J. Opt. Soc. Am. B 29 2373Google Scholar

    [30]

    Mandal P, Speck A, Ko C, Ramanathan S 2011 Opt. Lett. 36 1927Google Scholar

    [31]

    Liu M K, Hwang H Y, Tao H, Strikwerda A C, Fan K B, Keiser G R, Sternbach A J, West K G, Kittiwatanakul S, Lu J W, Wolf S A, Omenetto F G, Zhang X, Nelson K A, Averitt R D 2012 Nature 487 345Google Scholar

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    Zhao Y, Huang Q P, Cai H L, Lin X X, Lu Y L 2018 Opt. Commun. 426 443Google Scholar

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    Kocer H, Butun S, Banar B, Wang K, Tongay S, Wu J Q, Aydin K 2015 Appl. Phys. Lett. 106 161104Google Scholar

  • 图 1  1 bit编码超表面示意图 (a) 单元“0”的结构示意图; (b) 单元“1”的结构示意图; (c) 单元“0”和“1”的反射振幅; (d) 单元“0”和“1”的反射相位

    Fig. 1.  Schematic diagram of 1 bit coding metasurface: (a) Schematic diagram of unit “0”; (b) schematic diagram of unit “1”; (c) reflection amplitude of units “0” and “1”; (d) reflection phase of units “0” and “1”.

    图 2  1 bit编码超表面不同编码序列示意图 (a) 编码序列1010/1010; (b) 编码序列0101/1010; 在1.1 THz(c) 编码序列1010/1010的远场方向图; (d) 编码序列0101/1010的远场方向图

    Fig. 2.  Schematic diagram of different coding sequences on coding metasurface: (a) Coding sequence 1010/1010; (b) coding sequence 0101/1010; At 1.1 THz (c) far-field pattern of coding sequence 1010/1010; (d) far-field pattern of coding sequence 0101/1010.

    图 3  1 bit编码超表面示意图 (a) 单元“0”的结构示意图; (b) 单元“1”的结构示意图; (c) 单元“0”和“1”在二氧化钒不同态时的反射振幅; (d) 单元“0”和“1”在二氧化钒不同态时的反射相位

    Fig. 3.  Schematic diagram of 1-bit coding metasurface: (a) Schematic diagram of unit “0”; (b) schematic diagram of unit “1”; (c) reflection amplitude of units “0” and “1” in different vanadium dioxide states; (d) reflection phase of units “0” and “1” in different vanadium dioxide states.

    图 4  棋盘序列(0101/1010)在1.1 THz的远场示意图 (a) 二氧化钒为绝缘态时的远场示意图; (b) 二氧化钒为金属态时的远场示意图

    Fig. 4.  Far-field diagram of chessboard sequence (0101/1010) at 1.1 THz: (a) Far-field diagram when vanadium dioxide is in insulating state; (b) far-field diagram when vanadium dioxide is in metallic state.

    图 5  1 bit编码超表面示意图 (a) 单元“0”的结构示意图; (b) 单元“1”的结构示意图; (c) 单元“0”和“1”在二氧化钒不同态时的反射振幅; (d)单元“0”和“1”在二氧化钒不同态时的反射相位

    Fig. 5.  Schematic diagram of 1 bit coding metasurface: (a) Schematic diagram of unit "0"; (b) schematic diagram of unit "1"; (c) reflection amplitude of units "0" and "1" in differ rent vanadium dioxide states; (d) reflection phase of units "0" and "1" in different vanadium dioxide states.

    图 6  1.1 THz棋盘序列的远场方向图 (a) 二氧化钒为绝缘态; (b) 二氧化钒为金属态

    Fig. 6.  Far-field pattern of chessboard sequence at 1.1 THz: (a) Vanadium dioxide is in insulating state; (b) vanadium dioxide is in metallic state.

    图 7  不同编码序列示意图 (a) 编码序列1010/1010; (b) 编码序列0000/1111; 在1.1 THz(c) 编码序列1010/1010的远场方向图; (d) 编码序列0000/1111的远场方向图

    Fig. 7.  Schematic diagram of different coding sequences: (a) Coding sequence 1010/1010; (b) coding sequence 0000/1111; At 1.1 THz, (c) far-field pattern of coding sequence 1010/1010; (d) far-field pattern of coding sequence 0000/1111.

    图 8  聚焦的编码和相位示意图 (a) 焦点(xf = 0 μm, yf = 0 μm, zf = 900 μm)的编码图; (b) 焦点(xf = 0 μm, yf = 0 μm, zf = 900 μm)的相位图; (c) 焦点(xf = 600 μm, yf = 600 μm, zf = 800 μm)的编码图; (d) 焦点(xf = 600 μm, yf = 600 μm, zf = 800 μm)的相位图

    Fig. 8.  Coding and phase diagram of focus: (a) Coding diagram of focus (xf = 0 μm, yf = 0 μm, zf = 900 μm); (b) phase diagram of focus (xf = 0 μm, yf = 0 μm, zf = 900 μm); (c) coding diagram of focus (xf = 600 μm, yf = 600 μm, zf = 800 μm); (d) phase diagram of focus (xf = 600 μm, yf = 600 μm, zf = 800 μm).

    图 9  整体结构和电场图 二氧化钒为金属态时 (a) 超表面结构; (b)在z = 900 μm平面的x方向的归一化电场的x分量图; (c)在z = 900 μm平面的y方向的归一化电场的x分量图. 二氧化钒为绝缘时 (d) 超表面结构; (e) 在z = 800 μm平面的x方向的归一化电场的x分量图; (f) 在z = 800 μm平面的y方向的归一化电场的x分量图

    Fig. 9.  Overall structure and electric field diagram. When vanadium dioxide is metallic state: (a) Metasurface structure; (b) x component diagram of normalized electric field in X direction of z = 900 μm plane; (c) x component diagram of normalized electric field in Y direction of z = 900 μm plane. When vanadium dioxide is insulating state (d) metasurface structure; (E) x component diagram of normalized electric field in X direction of z = 800 μm plane; (f) x component diagram of normalized electric field in Y direction of z = 800 μm plane.

  • [1]

    姚建铨 2010 重庆邮电大学学报 22 703Google Scholar

    Yao J Q 2010 J. Chongqing Univ. Posts Telecommun. 22 703Google Scholar

    [2]

    刘盛纲 2006 中国基础科学 1 7Google Scholar

    Liu S G 2006 Chin. Basic Sci. 1 7Google Scholar

    [3]

    李晓楠, 周璐, 赵国忠 2019 物理学报 68 238101Google Scholar

    Li X N, Zhou L, Zhao G Z 2019 Acta Phys. Sin. 68 238101Google Scholar

    [4]

    Zhang Z W, Wang K J, Lei Y, Zhang Z Y, Zhao Y M, Li Y, Li C Y, Gu A, Shi N C, Zhao K, Zhao H L, Zhang C L 2015 Sci. China Phys. Mech. 58 124202Google Scholar

    [5]

    Heljo V P, Nordberg A, Tenho M, Virtanen T, Jouppila K, Salonen J, Maunu S L, Juppo A M 2012 Pharm. Res. 29 2684Google Scholar

    [6]

    Pickwell E, Wallace V P 2006 J. Phys. D: Appl. Phys. 39 R301Google Scholar

    [7]

    Guillet J P, Recur B, Frederique L, Bousquet B, Canioni L, Manek-Honninger I, Desbarats P, Mounaix P 2014 J. Infrared Milli. Terahz Waves 35 382Google Scholar

    [8]

    陈实, 胡伟东 2017 无线电通信技术 43 01Google Scholar

    Chen S, Hu W D 2017 Radio Commun. Technol. 43 01Google Scholar

    [9]

    姚建铨, 迟楠, 杨鹏飞, 崔海霞, 汪静丽, 李九生, 徐德刚, 丁欣 2009 中国激光 36 2213Google Scholar

    Yao J Q, Chi N, Yang P F, Cui H X, Wang J L, Li J S, Xu D G, Ding X 2009 Chin. J. Las. 36 2213Google Scholar

    [10]

    Köhler R, Tredicucci A, Beltram F, Beere H E, Linfield E H, Davies A G, Ritchie D A, Iotti R C, Rossi F 2002 Nature 417 156Google Scholar

    [11]

    Exter M V, Fattinger C, Grischkowsky D 1989 Appl. Phys. Lett. 55 337Google Scholar

    [12]

    Sinyukov A M, Liu Z W, Hor Y L, Su K, Barat R B, Gary D E, Michalopoulou Z H, Zorych I, Federici J F, Zimdars D 2008 Opt. Lett. 33 1593Google Scholar

    [13]

    Yan F, Yu C, Park H, Parrott E P J, Pickwell-MacPherson E 2013 J. Infrared Milli. Terahz Waves 34 489Google Scholar

    [14]

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

    [15]

    Mendis R, Nag A, Chen F, Mittleman D M 2010 Appl. Phys. Lett. 97 131106Google Scholar

    [16]

    Grady N K, Heyes J E, Chowdhury D R, Zeng Y, Reiten M T, Azad A K, Taylor A J, Dalvit D A R, Chen H T 2013 Science 340 1304Google Scholar

    [17]

    Zhang H F, Zhang X Q, Xu Q, Tian C X, Wang Q, Xu Y H, Li Y F, Gu J Q, Tian Z, Ouyang C M, Zhang X X, Hu C, Han J G, Zhang W L 2018 Adv. Opt. Mater. 6 1700773Google Scholar

    [18]

    王越, 冷雁冰, 王丽, 董连和, 刘顺瑞, 王君, 孙艳军 2018 物理学报 67 097801Google Scholar

    Wang Y, Leng Y B, Wang L, Dong L H, Liu S R, Wang J, Sun Y J 2018 Acta Phys. Sin. 67 097801Google Scholar

    [19]

    周璐, 赵国忠, 李晓楠 2019 物理学报 68 108701Google Scholar

    Zhou L, Zhao G Z, Li X N 2019 Acta Phys. Sin. 68 108701Google Scholar

    [20]

    Yu N F, Genevet P, Kats M A, Aieta F, Tetienne J P, Capasso F, Gaburro Z 2011 Science 334 333Google Scholar

    [21]

    Nemati A, Wang Q, Hong M H, Teng J H 2018 Opto-Electron. Adv. 1 180009Google Scholar

    [22]

    Deng Z L, Deng J H, Zhuang X, Wang S, Li K F, Wang Y, Chi Y H, Ye X, Xu J, Wang G P, Zhao R K, Wang X L, Cao Y Y, Cheng X, Li G X, Li X P 2018 Nano Lett. 18 2885Google Scholar

    [23]

    Deng Z L, Jin M K, Ye X, Wang S, Shi T, Deng J H, Mao N B, Cao Y Y, Guan B O, Alu A, Li G X, Li X P 2020 Adv. Funct. Mater. 30 1910610Google Scholar

    [24]

    Deng Z L, Cao Y Y, Li X P, Wang G P 2018 Photonics Res. 6 443Google Scholar

    [25]

    Cui T J, Qi M Q, Wan X, Zhao J, Cheng Q 2014 Light-sci. Appl. 3 e218Google Scholar

    [26]

    Liu S, Zhang L, Yang Q L, Xu Q, Yang Y, Noor A, Zhang Q, Iqbal S, Wan X, Tian Z, Tang W X, Cheng Q, Hang J G, Zhang W L, Cui T J 2016 Adv. Opt. Mater. 4 1965Google Scholar

    [27]

    Li J, Zhang Y T, Li J N, Yan X, Liang L J, Zhang Z, Huang J, Li J H, Yang Y, Yao J Q 2019 Nanoscale 11 5746Google Scholar

    [28]

    Fan F, Gu W H, Chen S, Wang X H, Chang S J 2013 Opt. Lett. 38 1582Google Scholar

    [29]

    Zhu Y H, Zhao Y, Holtz M, Fan Z Y, Bernussi A A 2012 J. Opt. Soc. Am. B 29 2373Google Scholar

    [30]

    Mandal P, Speck A, Ko C, Ramanathan S 2011 Opt. Lett. 36 1927Google Scholar

    [31]

    Liu M K, Hwang H Y, Tao H, Strikwerda A C, Fan K B, Keiser G R, Sternbach A J, West K G, Kittiwatanakul S, Lu J W, Wolf S A, Omenetto F G, Zhang X, Nelson K A, Averitt R D 2012 Nature 487 345Google Scholar

    [32]

    Zhao Y, Huang Q P, Cai H L, Lin X X, Lu Y L 2018 Opt. Commun. 426 443Google Scholar

    [33]

    Kocer H, Butun S, Banar B, Wang K, Tongay S, Wu J Q, Aydin K 2015 Appl. Phys. Lett. 106 161104Google Scholar

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出版历程
  • 收稿日期:  2020-06-11
  • 修回日期:  2020-06-30
  • 上网日期:  2020-12-02
  • 刊出日期:  2020-11-20

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