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基于树枝结构单元的超材料宽带微波吸收器

保石 罗春荣 张燕萍 赵晓鹏

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基于树枝结构单元的超材料宽带微波吸收器

保石, 罗春荣, 张燕萍, 赵晓鹏

Broadband metamaterial absorber based on dendritic structure

Bao Shi, Luo Chun-Rong, Zhang Yan-Ping, Zhao Xiao-Peng
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  • 本文设计并制作了一种基于树枝结构单元的超材料宽带微波吸收器.该超材料吸收器采用夹层结构,由按六边形密集排布的金属树枝阵列、双层介质基板和金属薄膜组成.通过调节树枝单元的几何参数和金属树枝阵列的排布方式,可以出现三个吸收峰,实现三频工作.通过调节三个吸收峰工作的频率形成宽频吸收,采用夹层结构提高吸收效率,从而对垂直入射到超材料表面的微波实现高吸收.实验表明吸收器的反射曲线从9.79 GHz到11.72 GHz出现了反射率小于10%的较宽吸收带,透射曲线恒等于0,吸收率大于90%的带宽为1.93 GHz.这种
    We present a metamaterial absorber (MA) composed of double layers of metal dendritic cells,dielectric substrate and metal film.With three different sizes of dendritic cells arranging in hexagonal array,it is able to find three discrete absorption peaks.Our experiments confirm that,if the frequencies of the three absorption peaks go closer,a combined broadband absorption peak could be achieved.Compared with the metamaterial absorber with only one singer layer of metal dendritic cells,the double-layered metal dendritic cells adopted in our MA greatly improve the absorption efficiency.The experimental result shows an absorption band of 1.93 GHz width with the absorptivity higher than 90% in the frequency range between 9.79 and 11.72 GHz.The proposed MA has a series of advantages such as high absorptivity,simple structure,small thickness,2D isotropy and wide absorption band.
    • 基金项目: 国家自然科学基金(批准号:50632030,50872113),国家重点基础研究发展计划(批准号:2004CB719805)和国防基础科研项目资助的课题.
    [1]

    [1]Shelby R A, Smith D R, Schultz S 2001 Science 292 77

    [2]

    [2]Smith D R, Pendry J B 2006 J. Opt. Soc. Am. B 23 391

    [3]

    [3]Pendry J B, Schurig D, Smith D R 2006 Science 312 1780

    [4]

    [4]Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F, Smith D R 2006 Science 314 977

    [5]

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

    [6]

    [6]Zhao Q, Zhao X P, Kang L, Zhang F L, Liu Y H, Luo C R 2004 Acta Phys. Sin. 53 2206 (in Chinese) [赵乾、赵晓鹏、康雷、张富利、刘亚红、罗春荣 2004 物理学报 53 2206]

    [7]

    [7]Zhang F L, Zhao Q, Liu Y H, Luo C R, Zhao X P 2004 Chin. Phys. Lett. 21 1330

    [8]

    [8]Zhao X P, Zhao Q, Kang L, Song J, Fu Q H 2005 Phys. Lett. A 346 87

    [9]

    [9]Luo C R, Kang L, Zhao Q, Fu Q H, Song J, Zhao X P 2005 Acta Phys. Sin. 54 1607 (in Chinese) [罗春荣、康雷、赵乾、付全红、宋娟、赵晓鹏 2005 物理学报 54 1607]

    [10]

    ]Zhou X, Fu Q H, Zhao J, Yang Y, Zhao X P 2006 Opt. Express. 14 7188

    [11]

    ]Zhu W R, Zhao X P, Guo J Q 2008 Appl. Phys. Lett. 92 241116

    [12]

    ]Zhou X, Zhao X P 2007 Appl. Phys. Lett. 91 181908

    [13]

    ]Guo J Q, Luo C R, Zhao X P 2009 Chin. Phys. Lett. 26 044102

    [14]

    ]Luo C R, Wang S H, Guo J Q, Huang Y, Zhao X P 2009 Acta Phys. Sin. 58 3124 (in Chinese) [罗春荣、王连胜、郭继权、黄勇、赵晓鹏 2009 物理学报 58 3124]

    [15]

    ]Liu H, Zhao X P, Yang Y, Li Q W, Lv J 2008 Adv. Mater. 20 2050

    [16]

    ]Liu B Q, Zhao X P, Zhu W R, Luo W, Cheng X C 2008 Adv. Funct. Mater. 18 3523

    [17]

    ]Christopher M B, Tao H, Liu X L, Richard D A, Zhang X, Padilla W J 2008 Opt. Express. 16 18565

    [18]

    ]Munk B A, Pryor J B, Gan Y B 2004 Electromagnetic Materials Proc. of the Symposium F 2003 (Singapore:World Scientific Publishing Company) p977

    [19]

    ]Zhou J, Zhang L, Tuttle G, Koschny T, Soukoulis C M 2006 Phys. Rev. B 73 041101

    [20]

    ]Kafesaki M, Tsiapa I, Katsarakis N, Koschny T, Soukoulis C M, Economou E N 2007 Phys. Rev. B 75 235114

    [21]

    ]Landy N I, Bingham C M, Tyler T, Jokerst N, Smith D R, Padilla W J 2009 Phys. Rev. B 79 125104

  • [1]

    [1]Shelby R A, Smith D R, Schultz S 2001 Science 292 77

    [2]

    [2]Smith D R, Pendry J B 2006 J. Opt. Soc. Am. B 23 391

    [3]

    [3]Pendry J B, Schurig D, Smith D R 2006 Science 312 1780

    [4]

    [4]Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F, Smith D R 2006 Science 314 977

    [5]

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

    [6]

    [6]Zhao Q, Zhao X P, Kang L, Zhang F L, Liu Y H, Luo C R 2004 Acta Phys. Sin. 53 2206 (in Chinese) [赵乾、赵晓鹏、康雷、张富利、刘亚红、罗春荣 2004 物理学报 53 2206]

    [7]

    [7]Zhang F L, Zhao Q, Liu Y H, Luo C R, Zhao X P 2004 Chin. Phys. Lett. 21 1330

    [8]

    [8]Zhao X P, Zhao Q, Kang L, Song J, Fu Q H 2005 Phys. Lett. A 346 87

    [9]

    [9]Luo C R, Kang L, Zhao Q, Fu Q H, Song J, Zhao X P 2005 Acta Phys. Sin. 54 1607 (in Chinese) [罗春荣、康雷、赵乾、付全红、宋娟、赵晓鹏 2005 物理学报 54 1607]

    [10]

    ]Zhou X, Fu Q H, Zhao J, Yang Y, Zhao X P 2006 Opt. Express. 14 7188

    [11]

    ]Zhu W R, Zhao X P, Guo J Q 2008 Appl. Phys. Lett. 92 241116

    [12]

    ]Zhou X, Zhao X P 2007 Appl. Phys. Lett. 91 181908

    [13]

    ]Guo J Q, Luo C R, Zhao X P 2009 Chin. Phys. Lett. 26 044102

    [14]

    ]Luo C R, Wang S H, Guo J Q, Huang Y, Zhao X P 2009 Acta Phys. Sin. 58 3124 (in Chinese) [罗春荣、王连胜、郭继权、黄勇、赵晓鹏 2009 物理学报 58 3124]

    [15]

    ]Liu H, Zhao X P, Yang Y, Li Q W, Lv J 2008 Adv. Mater. 20 2050

    [16]

    ]Liu B Q, Zhao X P, Zhu W R, Luo W, Cheng X C 2008 Adv. Funct. Mater. 18 3523

    [17]

    ]Christopher M B, Tao H, Liu X L, Richard D A, Zhang X, Padilla W J 2008 Opt. Express. 16 18565

    [18]

    ]Munk B A, Pryor J B, Gan Y B 2004 Electromagnetic Materials Proc. of the Symposium F 2003 (Singapore:World Scientific Publishing Company) p977

    [19]

    ]Zhou J, Zhang L, Tuttle G, Koschny T, Soukoulis C M 2006 Phys. Rev. B 73 041101

    [20]

    ]Kafesaki M, Tsiapa I, Katsarakis N, Koschny T, Soukoulis C M, Economou E N 2007 Phys. Rev. B 75 235114

    [21]

    ]Landy N I, Bingham C M, Tyler T, Jokerst N, Smith D R, Padilla W J 2009 Phys. Rev. B 79 125104

计量
  • 文章访问数:  8574
  • PDF下载量:  1384
  • 被引次数: 0
出版历程
  • 收稿日期:  2009-05-11
  • 修回日期:  2009-07-27
  • 刊出日期:  2010-05-15

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