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We present a perfect metamaterial abosorber composed of metallic leaf-shaped cells, dielectric substrate and metallic film. Based on the metallic Drude principle, this structure can realize an perfect absorptivity of 99.5% at the infrared communication frequencies with appropriate geometric parameters. Moreover, this structure can simultaneously achieve perfect absorptions at two infrared frequencies with the maximal magnitudes of 99.67% and 97.13% respectively, which effectively broadens the bandwidth of absorptivity, thereby benefiting the design and the application of absorber at the infrared frequencies. Afterward, the effects of the neck width on the position of the double absorptivity peak are investigated, and expected to be used in frequency modulation. The model proposed in this paper has a series of advantages such as simple structure, high absorptivity and broad operating bandwidth.
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Keywords:
- leaf-shaped model /
- double frequencies /
- infrared frequency /
- absorber
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[2] Veselago V G 1968 Sov. Phys. Usp. 10 509
[3] Pendry J B, Holden A J, Stewart W J, Youngs I 1996 Phys. Rev. Lett. 76 25
[4] Pendry J B, Holden A J, Robbins D J, Stewart W J 1999 IEEE Trans. MTT 47 2075
[5] Smith D R, Pendry J B 2006 J. Opt. Soc. Am. B 23 391
[6] Shelby R A, Smith D R, Schulrz S 2001 Science 292 77
[7] 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 53 2206]
[8] Huangfu J T, Ran L, Chen H, Zhang X, Chen K, Grzegorczyk T M, Kong J A 2004 Appl. Phys. Lett. 84 1357
[9] Liu Y H, Luo C R, Zhao X P 2007 Acta Phys. Sin. 56 5883 (in Chinese) [刘亚红, 罗春荣, 赵晓鹏 2007 56 5883]
[10] Zhou J F, Economon E N, Koschny T, Soukoulis C M 2006 Opt. Lett. 31 3620
[11] Xu F, Bai Y, Qiao L J, Zhao H J, Zhou J 2009 Chin. Phys. B 18 1653
[12] Yang Y M, Wang J F, Xia S, Bai P, Li Z, Wang J, Xu Z, Qu S B 2011 Chin. Phys. B 20 014101
[13] Landy N I, Sajuyigbe S, Mock J J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402
[14] Gu C, Qu S B, Pei Z B, Xu Z 2011 Chin. Phys. B 20 037801
[15] Tao H, Landy N I, Bingham C M, Zhang X, Averitt R D, Padilla W J 2008 Opt. Express 16 7181
[16] Avitzour Y, Urzhumov Y A, Shvets G 2009 Phys. Rev. B 79 045131
[17] Zhou X, Fu Q H, Zhao J, Yang Y, Zhao X P 2006 Opt. Express 14 7188
[18] Liu B Q, Zhao X P, Zhu W R, Luo W, Cheng X C 2008 Adv. Funct. Mater. 18 3523
[19] Liu H, Zhao X P, Yang Y, Li Q W, Lü J 2008 Adv. Mater. 20 2050
[20] Zhu W R, Zhao X P, Gong B Y 2011 J. Appl. Phys. 109 093504
[21] Zhu W R, Zhao X P, Gong B Y, Liu L H, Su B 2011 Appl. Phys. A 102 147
[22] Zhang Y P, Zhao X P, Bao S, Luo C R 2010 Acta Phys. Sin. 59 6070 (in Chinese) [张燕萍, 赵晓鹏, 保石, 罗春荣 2010 59 6070]
[23] Bao S, Luo C R, Zhang Y P, Zhao X P 2010 Acta Phys. Sin. 59 3187 (in Chinese) [保石, 罗春荣, 张燕萍, 赵晓鹏 2010 59 3187]
[24] Dolling G, Enkrich C, Wegener M, Soukoulis C M, Linden S 2006 Opt. Lett. 31 1800
[25] Tang S W, Zhu W R, Zhao X P 2009 Acta Phys. Sin. 58 3220 (in Chinese) [汤世伟, 朱卫仁, 赵晓鹏 2009 58 3220]
[26] Gu C, Qu S B, Pei Z B, Xu Z, Liu J, Gu W 2011 Chin. Phys. B 20 017801
[27] Landy N I, Bingham C M, Tyler T, Jokerst N, Smith D R, Padilla W J 2009 Phys. Rev. B 79 125104
[28] Smith D R, Schultz S 2002 Phys. Rev. B 65 195104
[29] Chen X D, Grzegorczyk T M, Wu B I, Pacheco J, Kong J A 2004 Phys. Rev. E 70 016608
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[1] Veselago V G 1967 Usp. Fiz. Nauk 92 517
[2] Veselago V G 1968 Sov. Phys. Usp. 10 509
[3] Pendry J B, Holden A J, Stewart W J, Youngs I 1996 Phys. Rev. Lett. 76 25
[4] Pendry J B, Holden A J, Robbins D J, Stewart W J 1999 IEEE Trans. MTT 47 2075
[5] Smith D R, Pendry J B 2006 J. Opt. Soc. Am. B 23 391
[6] Shelby R A, Smith D R, Schulrz S 2001 Science 292 77
[7] 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 53 2206]
[8] Huangfu J T, Ran L, Chen H, Zhang X, Chen K, Grzegorczyk T M, Kong J A 2004 Appl. Phys. Lett. 84 1357
[9] Liu Y H, Luo C R, Zhao X P 2007 Acta Phys. Sin. 56 5883 (in Chinese) [刘亚红, 罗春荣, 赵晓鹏 2007 56 5883]
[10] Zhou J F, Economon E N, Koschny T, Soukoulis C M 2006 Opt. Lett. 31 3620
[11] Xu F, Bai Y, Qiao L J, Zhao H J, Zhou J 2009 Chin. Phys. B 18 1653
[12] Yang Y M, Wang J F, Xia S, Bai P, Li Z, Wang J, Xu Z, Qu S B 2011 Chin. Phys. B 20 014101
[13] Landy N I, Sajuyigbe S, Mock J J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402
[14] Gu C, Qu S B, Pei Z B, Xu Z 2011 Chin. Phys. B 20 037801
[15] Tao H, Landy N I, Bingham C M, Zhang X, Averitt R D, Padilla W J 2008 Opt. Express 16 7181
[16] Avitzour Y, Urzhumov Y A, Shvets G 2009 Phys. Rev. B 79 045131
[17] Zhou X, Fu Q H, Zhao J, Yang Y, Zhao X P 2006 Opt. Express 14 7188
[18] Liu B Q, Zhao X P, Zhu W R, Luo W, Cheng X C 2008 Adv. Funct. Mater. 18 3523
[19] Liu H, Zhao X P, Yang Y, Li Q W, Lü J 2008 Adv. Mater. 20 2050
[20] Zhu W R, Zhao X P, Gong B Y 2011 J. Appl. Phys. 109 093504
[21] Zhu W R, Zhao X P, Gong B Y, Liu L H, Su B 2011 Appl. Phys. A 102 147
[22] Zhang Y P, Zhao X P, Bao S, Luo C R 2010 Acta Phys. Sin. 59 6070 (in Chinese) [张燕萍, 赵晓鹏, 保石, 罗春荣 2010 59 6070]
[23] Bao S, Luo C R, Zhang Y P, Zhao X P 2010 Acta Phys. Sin. 59 3187 (in Chinese) [保石, 罗春荣, 张燕萍, 赵晓鹏 2010 59 3187]
[24] Dolling G, Enkrich C, Wegener M, Soukoulis C M, Linden S 2006 Opt. Lett. 31 1800
[25] Tang S W, Zhu W R, Zhao X P 2009 Acta Phys. Sin. 58 3220 (in Chinese) [汤世伟, 朱卫仁, 赵晓鹏 2009 58 3220]
[26] Gu C, Qu S B, Pei Z B, Xu Z, Liu J, Gu W 2011 Chin. Phys. B 20 017801
[27] Landy N I, Bingham C M, Tyler T, Jokerst N, Smith D R, Padilla W J 2009 Phys. Rev. B 79 125104
[28] Smith D R, Schultz S 2002 Phys. Rev. B 65 195104
[29] Chen X D, Grzegorczyk T M, Wu B I, Pacheco J, Kong J A 2004 Phys. Rev. E 70 016608
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