Abstract

Magnetic resonance is considered to be a necessary condition for metamaterial perfect absorbers, and dual-band absorbers can be composed of a pair of metallic layers with anti-parallel surface currents. We designed and fabricated a tunable dual-band perfect absorber based on extraordinary-optical-transmission (EOT) effect and Fabry-Perot cavity resonance. The idea and the mechanism are completely different from the absorber based on the near-field interaction. The important advantage of our structure is that we can switch a single-band absorber to a dual-band absorber by changing the distance between two metallic layers and/or incident angle. The peak originating from the EOT effect becomes significantly narrower, resulting in an increase of the Q-factor from 16.88 to 49. The dual-band absorber can be optimized to be insensitive to the polarization of the incident electromagnetic wave by slightly modifying the absorber structure.

© 2012 OSA

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  1. N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
    [CrossRef] [PubMed]
  2. J. Hao, L. Zhou, and M. Qiu, “Nearly total absorption of light and heat generation by plasmonic metamaterials,” Phys. Rev. B83(16), 165107 (2011).
    [CrossRef]
  3. N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
    [CrossRef] [PubMed]
  4. X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
    [CrossRef] [PubMed]
  5. X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
    [CrossRef] [PubMed]
  6. D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
    [CrossRef]
  7. C. Hu, Z. Zhao, X. Chen, and X. Luo, “Realizing near-perfect absorption at visible frequencies,” Opt. Express17(13), 11039–11044 (2009).
    [CrossRef] [PubMed]
  8. M. Pu, C. Hu, M. Wang, C. Huang, Z. Zhao, C. Wang, Q. Feng, and X. Luo, “Design principles for infrared wide-angle perfect absorber based on plasmonic structure,” Opt. Express19(18), 17413–17420 (2011).
    [CrossRef] [PubMed]
  9. Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  12. L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys.110(6), 063702 (2011).
    [CrossRef]
  13. P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]

2012

2011

Y. Ma, Q. Chen, J. Grant, S. C. Saha, A. Khalid, and D. R. S. Cumming, “A terahertz polarization insensitive dual band metamaterial absorber,” Opt. Lett.36(6), 945–947 (2011).
[CrossRef] [PubMed]

L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys.110(6), 063702 (2011).
[CrossRef]

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

B. Zhang, Y. Zhao, Q. Hao, B. Kiraly, I. C. Khoo, S. Chen, and T. J. Huang, “Polarization-independent dual-band infrared perfect absorber based on a metal-dielectric-metal elliptical nanodisk array,” Opt. Express19(16), 15221–15228 (2011).
[CrossRef] [PubMed]

Y. Z. Cheng, Y. Nie, R. Z. Gong, and H. L. Yang, “Multi-band metamaterial absorber using cave-cross resonator,” Eur. Phys. J. Appl. Phys.56(03), 31301 (2011).
[CrossRef]

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

J. Hao, L. Zhou, and M. Qiu, “Nearly total absorption of light and heat generation by plasmonic metamaterials,” Phys. Rev. B83(16), 165107 (2011).
[CrossRef]

M. Pu, C. Hu, M. Wang, C. Huang, Z. Zhao, C. Wang, Q. Feng, and X. Luo, “Design principles for infrared wide-angle perfect absorber based on plasmonic structure,” Opt. Express19(18), 17413–17420 (2011).
[CrossRef] [PubMed]

2010

X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
[CrossRef] [PubMed]

D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
[CrossRef]

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

S. Xiao, L. Peng, and N. A. Mortensen, “Enhanced transmission of transverse electric waves through periodic arrays of structured subwavelength apertures,” Opt. Express18(6), 6040–6047 (2010).
[CrossRef] [PubMed]

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

2009

C. Hu, Z. Zhao, X. Chen, and X. Luo, “Realizing near-perfect absorption at visible frequencies,” Opt. Express17(13), 11039–11044 (2009).
[CrossRef] [PubMed]

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

2008

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

Averitt, R. D.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Azad, A. K.

D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
[CrossRef]

Bingham, C. M.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Cai, G.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

Chen, H. T.

Chen, Q.

Chen, S.

Chen, X.

Cheng, Y. Z.

Y. Z. Cheng, Y. Nie, R. Z. Gong, and H. L. Yang, “Multi-band metamaterial absorber using cave-cross resonator,” Eur. Phys. J. Appl. Phys.56(03), 31301 (2011).
[CrossRef]

Cumming, D. R. S.

Ding, P.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

Fan, C.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

Fan, K.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Feng, Q.

Giessen, H.

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

Gong, R. Z.

Y. Z. Cheng, Y. Nie, R. Z. Gong, and H. L. Yang, “Multi-band metamaterial absorber using cave-cross resonator,” Eur. Phys. J. Appl. Phys.56(03), 31301 (2011).
[CrossRef]

Grant, J.

Hao, J.

J. Hao, L. Zhou, and M. Qiu, “Nearly total absorption of light and heat generation by plasmonic metamaterials,” Phys. Rev. B83(16), 165107 (2011).
[CrossRef]

Hao, Q.

Hentschel, M.

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

Hu, C.

Hu, W.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

Huang, C.

Huang, T. J.

Jokerst, N. M.

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

Khalid, A.

Khoo, I. C.

Kiraly, B.

Landy, N. I.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

Li, L.

L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys.110(6), 063702 (2011).
[CrossRef]

Liang, C.

L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys.110(6), 063702 (2011).
[CrossRef]

Liang, E.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

Liu, N.

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

Liu, X.

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
[CrossRef] [PubMed]

Liu, Y. L.

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

Luo, X.

Ma, Y.

Mesch, M.

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

Mock, J. J.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

Mortensen, N. A.

Nie, Y.

Y. Z. Cheng, Y. Nie, R. Z. Gong, and H. L. Yang, “Multi-band metamaterial absorber using cave-cross resonator,” Eur. Phys. J. Appl. Phys.56(03), 31301 (2011).
[CrossRef]

O’Hara, J. F.

D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
[CrossRef]

Padilla, W. J.

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
[CrossRef] [PubMed]

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

Peng, L.

Pilon, D.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Pu, M.

Qiu, M.

J. Hao, L. Zhou, and M. Qiu, “Nearly total absorption of light and heat generation by plasmonic metamaterials,” Phys. Rev. B83(16), 165107 (2011).
[CrossRef]

Saha, S. C.

Sajuyigbe, S.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

Shchegolkov, D. Yu.

D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
[CrossRef]

Shrekenhamer, D.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Simakov, E. I.

D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
[CrossRef]

Smith, D. R.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

Starr, A. F.

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
[CrossRef] [PubMed]

Starr, T.

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
[CrossRef] [PubMed]

Strikwerda, A. C.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Tao, H.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Tyler, T.

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

Wang, C.

Wang, M.

Weiss, T.

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

Wen, Q. Y.

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

Xiao, S.

Xie, Y. S.

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

Xue, Q.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

Yang, H. L.

Y. Z. Cheng, Y. Nie, R. Z. Gong, and H. L. Yang, “Multi-band metamaterial absorber using cave-cross resonator,” Eur. Phys. J. Appl. Phys.56(03), 31301 (2011).
[CrossRef]

Yang, Q. H.

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

Yang, Y.

L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys.110(6), 063702 (2011).
[CrossRef]

Zhang, B.

Zhang, H. W.

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

Zhang, X.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Zhao, Y.

Zhao, Z.

Zhou, L.

J. Hao, L. Zhou, and M. Qiu, “Nearly total absorption of light and heat generation by plasmonic metamaterials,” Phys. Rev. B83(16), 165107 (2011).
[CrossRef]

Appl. Phys. Lett.

Q. Y. Wen, H. W. Zhang, Y. S. Xie, Q. H. Yang, and Y. L. Liu, “Dual band terahertz metamaterial absorber: design, fabrication, and characterization,” Appl. Phys. Lett.95(24), 241111 (2009).
[CrossRef]

Eur. Phys. J. Appl. Phys.

Y. Z. Cheng, Y. Nie, R. Z. Gong, and H. L. Yang, “Multi-band metamaterial absorber using cave-cross resonator,” Eur. Phys. J. Appl. Phys.56(03), 31301 (2011).
[CrossRef]

J. Appl. Phys.

L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys.110(6), 063702 (2011).
[CrossRef]

J. Opt.

P. Ding, E. Liang, G. Cai, W. Hu, C. Fan, and Q. Xue, “Dual-band perfect absorption and field enhancement by interaction between localized and propagating surface plasmons in optical metamaterials,” J. Opt.13(7), 075005 (2011).
[CrossRef]

J. Phys. D Appl. Phys.

H. Tao, C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, “A dual band terahertz metamaterials absorber,” J. Phys. D Appl. Phys.43(22), 225102 (2010).
[CrossRef]

Nano Lett.

N. Liu, M. Mesch, T. Weiss, M. Hentschel, and H. Giessen, “Infrared perfect absorber and its application as plasmonic sensor,” Nano Lett.10(7), 2342–2348 (2010).
[CrossRef] [PubMed]

Opt. Express

Opt. Lett.

Phys. Rev. B

J. Hao, L. Zhou, and M. Qiu, “Nearly total absorption of light and heat generation by plasmonic metamaterials,” Phys. Rev. B83(16), 165107 (2011).
[CrossRef]

D. Yu. Shchegolkov, A. K. Azad, J. F. O’Hara, and E. I. Simakov, “Perfect subwavelength fishnetlike metamaterial-based film terahertz absorbers,” Phys. Rev. B82(20), 205117 (2010).
[CrossRef]

Phys. Rev. Lett.

N. I. Landy, S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, “Perfect metamaterial absorber,” Phys. Rev. Lett.100(20), 207402 (2008).
[CrossRef] [PubMed]

X. Liu, T. Tyler, T. Starr, A. F. Starr, N. M. Jokerst, and W. J. Padilla, “Taming the blackbody with infrared metamaterials as selective thermal emitters,” Phys. Rev. Lett.107(4), 045901 (2011).
[CrossRef] [PubMed]

X. Liu, T. Starr, A. F. Starr, and W. J. Padilla, “Infrared spatial and frequency selective metamaterial with near-unity absorbance,” Phys. Rev. Lett.104(20), 207403 (2010).
[CrossRef] [PubMed]

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Fig. 1
Fig. 1

(a) Unit cell of dual-band absorber, (b) simulated absorption spectra of the dual-band absorber with d = 14 mm and single-band absorber with d = 3 mm, and (c) absorption as a function of d and frequency.

Fig. 2
Fig. 2

Transmission spectra of RHS and EOTS,and absorption spectrum of CRAS. Transmission spectrum of RHS has been magnified by a factor of 10.

Fig. 3
Fig. 3

(a) Distribution of surface currents on the front copper and the rear copper layers of EOTS, CRAS, DBAS with d = 3 mm and DBAS with d = 14 mm. (b) Schematic energy-level diagram for two absorption peaks of DBAS with d = 14 mm. The red arrows indicate the arrangement of the surface currents in the central bar and the edge of the hole.

Fig. 4
Fig. 4

(a) Photo of the fabricated structure. Experimental and simulated absorption spectra with d = (b) 3.1 and (c) 13.1 mm.

Fig. 5
Fig. 5

Absorption spectra of DBAS at incident angle θ = 0 and θ = 45°.

Fig. 6
Fig. 6

(a) Unit cells of structure A, B, C and D. Related parameters are set to be d = 14 mm, w = 0.5 mm, r = 3.6 mm and periodicity as 22 mm. (b) Transmission spectra of various structures. (c) Absorption spectra of structure D according to polarization angle.

Equations (4)

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f EOTS = 1 ( L 1 + L 2 2 ) C 2
f DBAS,3 mm = 1 ( L 1 + L 2 2 L 3 ) C C C+2 C ,
f DBAS, 3 mm 1 ( L 1 + L 2 2 L 3 ) C 2 ,
f high 1 ( L 1 + L 2 2 L 3 ) C 2 ,

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