Abstract

We present a terahertz time-domain spectroscopy study of the transmission properties of planar composite media made from subwavelength double split-ring resonators (SRRs). The measured amplitude transmission spectra reveal a resonance near 0.5 THz, the central frequency of most ultrafast terahertz systems, for one SRR orientation in normal-incidence geometry. This resonance is attributed to the effect of electric excitation of magnetic resonance of the SRR arrays. In addition, the influences of background substrate, lattice constant, and the shapes of the SRRs on the terahertz resonance are experimentally investigated and agree well with the results of recent numerical studies.

© 2006 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
    [CrossRef] [PubMed]
  2. J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
    [CrossRef] [PubMed]
  3. J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
    [CrossRef]
  4. T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
    [CrossRef] [PubMed]
  5. S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
    [CrossRef] [PubMed]
  6. S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
    [CrossRef] [PubMed]
  7. L. Alekseyev, V. A. Podolskiy, and E. E. Narimanov, in CLEO/QELS/PhAST'2005 Technical Digest (Optical Society of America, 2005), CD-ROM, paper JThC2.
  8. N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
    [CrossRef] [PubMed]
  9. P. Gay-Balmaz and O. J. Martin, J. Appl. Phys. 92, 2929 (2002).
    [CrossRef]
  10. N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
    [CrossRef]
  11. M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
    [CrossRef]
  12. B. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
    [CrossRef]
  13. R. A. Cheville, R. W. McGowan, and D. Grischkowsky, IEEE Antennas Propag. 45, 1518 (1997).
    [CrossRef]
  14. S. Coleman and D. Grischkowsky, Appl. Phys. Lett. 83, 3656 (2003).
    [CrossRef]
  15. D. Qu, D. Grischkowsky, and W. Zhang, Opt. Lett. 29, 896 (2004).
    [CrossRef] [PubMed]
  16. D. Qu and D. Grischkowsky, Phys. Rev. Lett. 93, 196804 (2004).
    [CrossRef] [PubMed]
  17. D. Grischkowsky, S. Keiding, M. van Exter, and Ch. Fattinger, J. Opt. Soc. Am. B 7, 2006 (1990).
    [CrossRef]
  18. K. Aydin, K. Guven, M. Kafesaki, L. Zhang, C. M. Soukoulis, and E. Ozbay, Opt. Lett. 29, 2623 (2004).
    [CrossRef] [PubMed]

2005

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

2004

D. Qu, D. Grischkowsky, and W. Zhang, Opt. Lett. 29, 896 (2004).
[CrossRef] [PubMed]

D. Qu and D. Grischkowsky, Phys. Rev. Lett. 93, 196804 (2004).
[CrossRef] [PubMed]

K. Aydin, K. Guven, M. Kafesaki, L. Zhang, C. M. Soukoulis, and E. Ozbay, Opt. Lett. 29, 2623 (2004).
[CrossRef] [PubMed]

N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
[CrossRef]

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

2003

S. Coleman and D. Grischkowsky, Appl. Phys. Lett. 83, 3656 (2003).
[CrossRef]

2002

B. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

P. Gay-Balmaz and O. J. Martin, J. Appl. Phys. 92, 2929 (2002).
[CrossRef]

2000

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

1999

J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
[CrossRef]

1997

R. A. Cheville, R. W. McGowan, and D. Grischkowsky, IEEE Antennas Propag. 45, 1518 (1997).
[CrossRef]

1996

J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
[CrossRef] [PubMed]

1990

Alekseyev, L.

L. Alekseyev, V. A. Podolskiy, and E. E. Narimanov, in CLEO/QELS/PhAST'2005 Technical Digest (Optical Society of America, 2005), CD-ROM, paper JThC2.

Aydin, K.

Basov, D. N.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

Brueck, S. R.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

Cheville, R. A.

R. A. Cheville, R. W. McGowan, and D. Grischkowsky, IEEE Antennas Propag. 45, 1518 (1997).
[CrossRef]

Coleman, S.

S. Coleman and D. Grischkowsky, Appl. Phys. Lett. 83, 3656 (2003).
[CrossRef]

Economou, E. N.

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
[CrossRef]

Enkrich, C.

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

Fan, W.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

Fang, N.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

Fattinger, Ch.

Ferguson, B.

B. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

Frauenglass, A.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

Gay-Balmaz, P.

P. Gay-Balmaz and O. J. Martin, J. Appl. Phys. 92, 2929 (2002).
[CrossRef]

Grischkowsky, D.

D. Qu, D. Grischkowsky, and W. Zhang, Opt. Lett. 29, 896 (2004).
[CrossRef] [PubMed]

D. Qu and D. Grischkowsky, Phys. Rev. Lett. 93, 196804 (2004).
[CrossRef] [PubMed]

S. Coleman and D. Grischkowsky, Appl. Phys. Lett. 83, 3656 (2003).
[CrossRef]

R. A. Cheville, R. W. McGowan, and D. Grischkowsky, IEEE Antennas Propag. 45, 1518 (1997).
[CrossRef]

D. Grischkowsky, S. Keiding, M. van Exter, and Ch. Fattinger, J. Opt. Soc. Am. B 7, 2006 (1990).
[CrossRef]

Gundogdu, T. F.

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

Guven, K.

Holden, A.

J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
[CrossRef]

J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
[CrossRef] [PubMed]

Kafesaki, M.

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
[CrossRef]

K. Aydin, K. Guven, M. Kafesaki, L. Zhang, C. M. Soukoulis, and E. Ozbay, Opt. Lett. 29, 2623 (2004).
[CrossRef] [PubMed]

Katsarakis, N.

Keiding, S.

Konstantnidis, G.

Koschny, T.

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

Koschny, Th.

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
[CrossRef]

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

Kostopoulos, A.

Linden, S.

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

Malloy, K. J.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

Martin, O. J.

P. Gay-Balmaz and O. J. Martin, J. Appl. Phys. 92, 2929 (2002).
[CrossRef]

McGowan, R. W.

R. A. Cheville, R. W. McGowan, and D. Grischkowsky, IEEE Antennas Propag. 45, 1518 (1997).
[CrossRef]

Minhas, B.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

Narimanov, E. E.

L. Alekseyev, V. A. Podolskiy, and E. E. Narimanov, in CLEO/QELS/PhAST'2005 Technical Digest (Optical Society of America, 2005), CD-ROM, paper JThC2.

Nemat-Nasser, S. C.

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

Ozbay, E.

Padilla, W. J.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

Penciu, R. S.

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

Pendry, J. B.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
[CrossRef]

J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
[CrossRef] [PubMed]

Podolskiy, V. A.

L. Alekseyev, V. A. Podolskiy, and E. E. Narimanov, in CLEO/QELS/PhAST'2005 Technical Digest (Optical Society of America, 2005), CD-ROM, paper JThC2.

Qu, D.

Robbins, D. D.

J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
[CrossRef]

Schultz, S.

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

Smith, D. R.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

Soukoulis, C. M.

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

N. Katsarakis, G. Konstantnidis, A. Kostopoulos, R. S. Penciu, T. F. Gundogdu, M. Kafesaki, E. N. Economou, Th. Koschny, and C. M. Soukoulis, Opt. Lett. 30, 1348 (2005).
[CrossRef] [PubMed]

N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
[CrossRef]

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

K. Aydin, K. Guven, M. Kafesaki, L. Zhang, C. M. Soukoulis, and E. Ozbay, Opt. Lett. 29, 2623 (2004).
[CrossRef] [PubMed]

Stewart, W.

J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
[CrossRef]

J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
[CrossRef] [PubMed]

van Exter, M.

Vier, D. C.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

Wegener, M.

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

Yen, T. J.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

Youngs, I.

J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
[CrossRef] [PubMed]

Zhang, L.

Zhang, S.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

Zhang, W.

Zhang, X.

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

Zhang, X.-C.

B. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

Zhou, J.

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

Appl. Phys. Lett.

N. Katsarakis, Th. Koschny, M. Kafesaki, E. N. Economou, and C. M. Soukoulis, Appl. Phys. Lett. 84, 2943 (2004).
[CrossRef]

S. Coleman and D. Grischkowsky, Appl. Phys. Lett. 83, 3656 (2003).
[CrossRef]

IEEE Antennas Propag.

R. A. Cheville, R. W. McGowan, and D. Grischkowsky, IEEE Antennas Propag. 45, 1518 (1997).
[CrossRef]

IEEE Trans. Microwave Theory Tech.

J. B. Pendry, A. Holden, D. D. Robbins, and W. Stewart, IEEE Trans. Microwave Theory Tech. 47, 2075 (1999).
[CrossRef]

J. Appl. Phys.

P. Gay-Balmaz and O. J. Martin, J. Appl. Phys. 92, 2929 (2002).
[CrossRef]

J. Opt. A Pure Appl. Opt.

M. Kafesaki, T. Koschny, R. S. Penciu, T. F. Gundogdu, E. N. Economou, and C. M. Soukoulis, J. Opt. A Pure Appl. Opt. 7, S12 (2005).
[CrossRef]

J. Opt. Soc. Am. B

Nat. Mater.

B. Ferguson and X.-C. Zhang, Nat. Mater. 1, 26 (2002).
[CrossRef]

Opt. Lett.

Phys. Rev. Lett.

S. Zhang, W. Fan, A. Frauenglass, B. Minhas, K. J. Malloy, and S. R. J. Brueck, Phys. Rev. Lett. 94, 037402 (2005).
[CrossRef] [PubMed]

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, Phys. Rev. Lett. 84, 4184 (2000).
[CrossRef] [PubMed]

J. B. Pendry, A. Holden, W. Stewart, and I. Youngs, Phys. Rev. Lett. 76, 4773 (1996).
[CrossRef] [PubMed]

D. Qu and D. Grischkowsky, Phys. Rev. Lett. 93, 196804 (2004).
[CrossRef] [PubMed]

Science

T. J. Yen, W. J. Padilla, N. Fang, D. C. Vier, D. R. Smith, J. B. Pendry, D. N. Basov, and X. Zhang, Science 303, 1494 (2004).
[CrossRef] [PubMed]

S. Linden, C. Enkrich, M. Wegener, J. Zhou, Th. Koschny, and C. M. Soukoulis, Science 306, 1351 (2004).
[CrossRef] [PubMed]

Other

L. Alekseyev, V. A. Podolskiy, and E. E. Narimanov, in CLEO/QELS/PhAST'2005 Technical Digest (Optical Society of America, 2005), CD-ROM, paper JThC2.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1
Fig. 1

Diagrams of (a) a square SRR and (b) a circular SRR. (c) Microscopic image of a square SRR array made from aluminum on silicon; the dimensions of the SRR are d = 2 μ m , w = 3 μ m , t = 6 μ m , l = 36 μ m , and lattice constant P = 50 μ m . (d) Image of a circular SRR array with the same dimensions as those of the square SRR array with r = 3 μ m .

Fig. 2
Fig. 2

(a) Measured amplitude transmission and (b) the corresponding phase change of the square SRRs [Fig. 1c]: array on silicon, solid curves; array on quartz, dotted curves. The vertical dashed lines indicate the magnetic resonances.

Fig. 3
Fig. 3

Measured amplitude transmission of a square SRR array (solid curves) and a CR array (dotted curves) on silicon with the same dimensions: w = t = 5 μ m , l = 40 μ m , and P = 60 μ m , except that d = 5 μ m for SRR and d = 0 for CR. (a) Perpendicular orientation, (b) parallel orientation.

Fig. 4
Fig. 4

(a) Measured amplitude transmission of circular SRR arrays on silicon with the same SRR but different lattice constants [Fig. 1d] with P = 50 μ m (solid curve) and P = 60 μ m (dotted curve). (b) Comparison of amplitude transmission of the square SRR array [Fig. 1c, solid curve)] with the circular SRR array [Fig. 1d, dotted curve], both on silicon.

Metrics