Abstract

We experimentally demonstrate a planar terahertz Fano metamaterial with an ultrahigh quality (Q) factor of 227. This is achieved by the excitation of the nonradiative dark modes by introducing a tiny asymmetry in the metamaterial structure. The extremely sharp quadrupole and Fano resonances are excited at normal incidence for orthogonal polarizations of the electric field. In order to capture the narrow linewidth of the dark resonance modes, we perform high resolution terahertz time–domain measurements with a scan length of 200 picoseconds and frequency resolution of 5 GHz. These high-Q metamaterials can be used in ultrasensitive label-free terahertz sensing, dense photonic integration, and narrowband filtering.

© 2012 Optical Society of America

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  1. A. Boltasseva and H. A. Atwater, Science 331, 290(2011).
    [CrossRef]
  2. J. B. Khurgin and G. Sun, Appl. Phys. Lett. 99, 211106 (2011).
    [CrossRef]
  3. R. Singh, A. K. Azad, J. F. O’Hara, A. J. Taylor, and W. Zhang, Opt. Lett. 33, 1506 (2008).
    [CrossRef]
  4. R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
    [CrossRef]
  5. N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
    [CrossRef]
  6. C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
    [CrossRef]
  7. A. Bitzer, J. Wallauer, H. Helm, H. Merbold, T. Feurer, and M. Walther, Opt. Express 17, 22108 (2009).
    [CrossRef]
  8. R. Singh, C. Rockstuhl, and W. Zhang, Appl. Phys. Lett. 97, 241108 (2010).
    [CrossRef]
  9. R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 19, 6312 (2011).
    [CrossRef]
  10. C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
    [CrossRef]
  11. I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
    [CrossRef]
  12. V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
    [CrossRef]
  13. R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
    [CrossRef]
  14. A. E. Miroshnichenko, S. Flach, and Y. S. Kivshar, Rev. Mod. Phys. 82, 2257 (2010).
    [CrossRef]
  15. R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 18, 13044 (2010).
    [CrossRef]
  16. B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
    [CrossRef]
  17. C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
    [CrossRef]
  18. J. F. O’Hara, R. Singh, I. Brener, E. Smirnova, J. Han, A. J. Taylor, and W. Zhang, Opt. Express 16, 1786 (2008).
    [CrossRef]
  19. J. Zhao, C. Zhang, P. V. Braun, and H. Giessen, Adv. Mater. (to be published).
  20. J. F. O’Hara, W. Withayachumnankul, and I. A. I. Al-Naib, Terahertz 33, 245 (2012).
  21. U. Fano, Phys. Rev. 124, 1866 (1961).
    [CrossRef]

2012

J. F. O’Hara, W. Withayachumnankul, and I. A. I. Al-Naib, Terahertz 33, 245 (2012).

2011

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
[CrossRef]

A. Boltasseva and H. A. Atwater, Science 331, 290(2011).
[CrossRef]

J. B. Khurgin and G. Sun, Appl. Phys. Lett. 99, 211106 (2011).
[CrossRef]

I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 19, 6312 (2011).
[CrossRef]

2010

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 18, 13044 (2010).
[CrossRef]

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

R. Singh, C. Rockstuhl, and W. Zhang, Appl. Phys. Lett. 97, 241108 (2010).
[CrossRef]

A. E. Miroshnichenko, S. Flach, and Y. S. Kivshar, Rev. Mod. Phys. 82, 2257 (2010).
[CrossRef]

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

2009

A. Bitzer, J. Wallauer, H. Helm, H. Merbold, T. Feurer, and M. Walther, Opt. Express 17, 22108 (2009).
[CrossRef]

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

2008

2007

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

2005

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

1961

U. Fano, Phys. Rev. 124, 1866 (1961).
[CrossRef]

Adato, R.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Al-Naib, I. A. I.

J. F. O’Hara, W. Withayachumnankul, and I. A. I. Al-Naib, Terahertz 33, 245 (2012).

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 19, 6312 (2011).
[CrossRef]

C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
[CrossRef]

I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 18, 13044 (2010).
[CrossRef]

Altug, H.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Arju, N.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Atwater, H. A.

A. Boltasseva and H. A. Atwater, Science 331, 290(2011).
[CrossRef]

Azad, A. K.

Bitzer, A.

Boltasseva, A.

A. Boltasseva and H. A. Atwater, Science 331, 290(2011).
[CrossRef]

Born, N.

C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
[CrossRef]

I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
[CrossRef]

Braun, P. V.

J. Zhao, C. Zhang, P. V. Braun, and H. Giessen, Adv. Mater. (to be published).

Brener, I.

Cao, W.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

Chong, C. T.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

Chowdhury, D. R.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

Fano, U.

U. Fano, Phys. Rev. 124, 1866 (1961).
[CrossRef]

Fedotov, V. A.

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

Feurer, T.

Flach, S.

A. E. Miroshnichenko, S. Flach, and Y. S. Kivshar, Rev. Mod. Phys. 82, 2257 (2010).
[CrossRef]

Fleischhauer, M.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

Giessen, H.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

J. Zhao, C. Zhang, P. V. Braun, and H. Giessen, Adv. Mater. (to be published).

Gu, J.

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

Halas, N. J.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

Han, J.

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

J. F. O’Hara, R. Singh, I. Brener, E. Smirnova, J. Han, A. J. Taylor, and W. Zhang, Opt. Express 16, 1786 (2008).
[CrossRef]

Helm, H.

Jansen, C.

I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
[CrossRef]

C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
[CrossRef]

Ka¨stel, J.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

Khanikaev, A. B.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Khurgin, J. B.

J. B. Khurgin and G. Sun, Appl. Phys. Lett. 99, 211106 (2011).
[CrossRef]

Kim, D. S.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Kim, J.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Kivshar, Y. S.

A. E. Miroshnichenko, S. Flach, and Y. S. Kivshar, Rev. Mod. Phys. 82, 2257 (2010).
[CrossRef]

Koch, M.

I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
[CrossRef]

C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 19, 6312 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 18, 13044 (2010).
[CrossRef]

Langguth, L.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

Lienau, C.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Liu, N.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

Luk’yanchuk, B.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

Maier, S. A.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

Merbold, H.

Miroshnichenko, A. E.

A. E. Miroshnichenko, S. Flach, and Y. S. Kivshar, Rev. Mod. Phys. 82, 2257 (2010).
[CrossRef]

Morandotti, R.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

Nordlander, P.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

O’Hara, J. F.

Ozaki, T.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

Papasimakis, N.

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

Park, D. J.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Pfau, T.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

Prosvirnin, S. L.

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

Rockstuhl, C.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

R. Singh, C. Rockstuhl, and W. Zhang, Appl. Phys. Lett. 97, 241108 (2010).
[CrossRef]

Ropers, C.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Rose, M.

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

Shvets, G.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Singh, R.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 19, 6312 (2011).
[CrossRef]

R. Singh, I. A. I. Al-Naib, M. Koch, and W. Zhang, Opt. Express 18, 13044 (2010).
[CrossRef]

R. Singh, C. Rockstuhl, and W. Zhang, Appl. Phys. Lett. 97, 241108 (2010).
[CrossRef]

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

J. F. O’Hara, R. Singh, I. Brener, E. Smirnova, J. Han, A. J. Taylor, and W. Zhang, Opt. Express 16, 1786 (2008).
[CrossRef]

R. Singh, A. K. Azad, J. F. O’Hara, A. J. Taylor, and W. Zhang, Opt. Lett. 33, 1506 (2008).
[CrossRef]

Smirnova, E.

Steinmeyer, G.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Stibenz, G.

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Sun, G.

J. B. Khurgin and G. Sun, Appl. Phys. Lett. 99, 211106 (2011).
[CrossRef]

Taylor, A. J.

Tian, Z.

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

Wallauer, J.

Walther, M.

Weiss, T.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

Withayachumnankul, W.

J. F. O’Hara, W. Withayachumnankul, and I. A. I. Al-Naib, Terahertz 33, 245 (2012).

Wu, C.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Yang, Y. P.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

Yanik, A. A.

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Zhang, C.

J. Zhao, C. Zhang, P. V. Braun, and H. Giessen, Adv. Mater. (to be published).

Zhang, W.

Zhang, W. L.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

Zhao, J.

J. Zhao, C. Zhang, P. V. Braun, and H. Giessen, Adv. Mater. (to be published).

Zheludev, N. I.

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

Adv. Mater.

J. Zhao, C. Zhang, P. V. Braun, and H. Giessen, Adv. Mater. (to be published).

Appl. Phys. Lett.

R. Singh, I. A. I. Al-Naib, Y. P. Yang, D. R. Chowdhury, W. Cao, C. Rockstuhl, T. Ozaki, R. Morandotti, and W. L. Zhang, Appl. Phys. Lett. 99, 201107 (2011).
[CrossRef]

R. Singh, Z. Tian, J. Han, C. Rockstuhl, J. Gu, and W. Zhang, Appl. Phys. Lett. 96, 071114 (2010).
[CrossRef]

C. Jansen, I. A. I. Al-Naib, N. Born, and M. Koch, Appl. Phys. Lett. 98, 051109 (2011).
[CrossRef]

J. B. Khurgin and G. Sun, Appl. Phys. Lett. 99, 211106 (2011).
[CrossRef]

R. Singh, C. Rockstuhl, and W. Zhang, Appl. Phys. Lett. 97, 241108 (2010).
[CrossRef]

I. A. I. Al-Naib, C. Jansen, N. Born, and M. Koch, Appl. Phys. Lett. 98, 091107 (2011).
[CrossRef]

Nat. Mater.

N. Liu, L. Langguth, T. Weiss, J. Ka¨stel, M. Fleischhauer, T. Pfau, and H. Giessen, Nat. Mater. 8, 758 (2009).
[CrossRef]

B. Luk’yanchuk, N. I. Zheludev, S. A. Maier, N. J. Halas, P. Nordlander, H. Giessen, and C. T. Chong, Nat. Mater. 9, 707 (2010).
[CrossRef]

C. Wu, A. B. Khanikaev, R. Adato, N. Arju, A. A. Yanik, H. Altug, and G. Shvets, Nat. Mater. 11, 69 (2011).
[CrossRef]

Opt. Express

Opt. Lett.

Phys. Rev.

U. Fano, Phys. Rev. 124, 1866 (1961).
[CrossRef]

Phys. Rev. Lett.

V. A. Fedotov, M. Rose, S. L. Prosvirnin, N. Papasimakis, and N. I. Zheludev, Phys. Rev. Lett. 99, 147401 (2007).
[CrossRef]

C. Ropers, D. J. Park, G. Stibenz, G. Steinmeyer, J. Kim, D. S. Kim, and C. Lienau, Phys. Rev. Lett. 94, 113901(2005).
[CrossRef]

Rev. Mod. Phys.

A. E. Miroshnichenko, S. Flach, and Y. S. Kivshar, Rev. Mod. Phys. 82, 2257 (2010).
[CrossRef]

Science

A. Boltasseva and H. A. Atwater, Science 331, 290(2011).
[CrossRef]

Terahertz

J. F. O’Hara, W. Withayachumnankul, and I. A. I. Al-Naib, Terahertz 33, 245 (2012).

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Figures (3)

Fig. 1.
Fig. 1.

(a) Measured time-domain transmission through metamaterial ASR5 and the blank silicon. Inset: strong time-domain ringing beyond the main terahertz pulse. (b) Corresponding Fourier transform of the measured pulses. Inset: Image of ASR5.

Fig. 2.
Fig. 2.

Measured and simulated transmission spectra when (a)–(d) the E field is polarized along the gaps arms, and (e)–(h) the E field is polarized perpendicular to the gap arms in ASR1, ASR3, ASR5, and ASR10, respectively. The inset graphs in (a) illustrate the zoomed resonance feature of ASR1. Surface current simulations in ASR5 at (i) transmission resonance peak at 1.14 THz when the E field is along the gap in the x direction, (j) transmission resonance dip at 0.5 THz when the E field is perpendicular to the gap in the y direction.

Fig. 3.
Fig. 3.

Q-factors calculated from the measurement and simulations for (a) E field along the gap and (b) E field perpendicular to the gap. The inset of (a) shows the figure of merit.

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