Abstract

The transmission from a single subwavelength slit in a metal film with periodic dielectric bars on its surfaces has been analyzed numerically by the finite-difference time-domain method. Results show that the role of the periodic dielectric bars is just the same as that of the periodic grooves directly on the surfaces. With the modulations of dielectric bars on the input and output surfaces of the metal film, light transmission through the subwavelength slit is enhanced extraordinarily and confined to directional emission. The CDEW model is employed to explain the mechanism of the transmission enhancement and directional emission caused by the periodic dielectric bars.

© 2006 Optical Society of America

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  1. T. Thio, K. M. Pellerin, R. A. Linke, H. J. Lezec, and T. W. Ebbesen, "Enhanced light transmission through a single subwavelength aperture," Opt. Lett. 26, 1972-1974 (2001).
    [CrossRef]
  2. H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
    [CrossRef] [PubMed]
  3. T. Thio, H.J. Lezec, and T.W. Ebbesen, "Strongly enhanced optical transmission through subwavelength holes in metal films," Physica B 279, 90-93 (2000).
    [CrossRef]
  4. G. Gbur, H. F. Schouten, and T. D. Visser, "Achieving superresolution in near-field optical data readout systems using surface plasmons," Appl. Phys. Lett. 87, 191105 (2005).
    [CrossRef]
  5. C. H. Gan and G. Gbur, "Strategies for employing surface plasmons in near-field optical readout systems," Opt. Express 14, 2385-2397 (2006), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-14-6-2385.
    [CrossRef] [PubMed]
  6. K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
    [CrossRef]
  7. S. Shinada, J. Hashizume, and F. Koyama, "Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating," Appl. Phys. Lett. 83, 836-838 (2003).
    [CrossRef]
  8. H. Caglayan, I. Bulu, and E. Ozbay, "Extraordinary grating-coupled microwave transmission through a subwavelength annular aperture," Opt. Express 13, 1666-1671 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-5-1666.
    [CrossRef] [PubMed]
  9. M. J. Lockyear, A. P. Hibbins, and J. R. Sambles, "Microwave transmission through a single subwavelength annular aperture in a metal plate," Phys. Rev. Lett. 94, 193902 (2005).
    [CrossRef] [PubMed]
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    [CrossRef]
  11. B. Wang and G. P. Wang, "Directional beaming of light from a nanoslit surrounded by metallic heterostructures," Appl. Phys. Lett. 88, 013114 (2006).
    [CrossRef]
  12. A. V. Zayats and I. I. Smolyaninov, "High-optical-throughput individual nanoscale aperture in a multilayered metallic film," Opt. Lett. 31, 398-400 (2006).
    [CrossRef] [PubMed]
  13. Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
    [CrossRef] [PubMed]
  14. Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
    [CrossRef]
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  16. P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
    [CrossRef] [PubMed]
  17. S. K. Morrison and Y. S. Kivshar, "Engineering of directional emission from photonic-crystal waveguides," Appl. Phys. Lett. 86, 081110 (2005).
    [CrossRef]
  18. H. J. Lezec and T. Thio, "Diffracted evanescent wave model for enhanced and suppressed optical transmission through subwavelength hole arrays," Opt. Express 12, 3629-3651 (2004), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-16-3629.
    [CrossRef] [PubMed]
  19. A. P. Hibbins, J. R. Sambles, and C. R. Lawrence, "Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate," Appl. Phys. Lett. 81, 4661-4663 (2002).
    [CrossRef]

2006 (5)

2005 (6)

S. K. Morrison and Y. S. Kivshar, "Engineering of directional emission from photonic-crystal waveguides," Appl. Phys. Lett. 86, 081110 (2005).
[CrossRef]

Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
[CrossRef] [PubMed]

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

H. Caglayan, I. Bulu, and E. Ozbay, "Extraordinary grating-coupled microwave transmission through a subwavelength annular aperture," Opt. Express 13, 1666-1671 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-5-1666.
[CrossRef] [PubMed]

M. J. Lockyear, A. P. Hibbins, and J. R. Sambles, "Microwave transmission through a single subwavelength annular aperture in a metal plate," Phys. Rev. Lett. 94, 193902 (2005).
[CrossRef] [PubMed]

G. Gbur, H. F. Schouten, and T. D. Visser, "Achieving superresolution in near-field optical data readout systems using surface plasmons," Appl. Phys. Lett. 87, 191105 (2005).
[CrossRef]

2004 (2)

H. J. Lezec and T. Thio, "Diffracted evanescent wave model for enhanced and suppressed optical transmission through subwavelength hole arrays," Opt. Express 12, 3629-3651 (2004), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-16-3629.
[CrossRef] [PubMed]

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

2003 (1)

S. Shinada, J. Hashizume, and F. Koyama, "Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating," Appl. Phys. Lett. 83, 836-838 (2003).
[CrossRef]

2002 (2)

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

A. P. Hibbins, J. R. Sambles, and C. R. Lawrence, "Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate," Appl. Phys. Lett. 81, 4661-4663 (2002).
[CrossRef]

2001 (1)

2000 (1)

T. Thio, H.J. Lezec, and T.W. Ebbesen, "Strongly enhanced optical transmission through subwavelength holes in metal films," Physica B 279, 90-93 (2000).
[CrossRef]

Agio, M.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Birner, A.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Bulu, I.

Caglayan, H.

Degiron, A.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

Devaux, E.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

Ebbesen, T. W.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

T. Thio, K. M. Pellerin, R. A. Linke, H. J. Lezec, and T. W. Ebbesen, "Enhanced light transmission through a single subwavelength aperture," Opt. Lett. 26, 1972-1974 (2001).
[CrossRef]

Ebbesen, T.W.

T. Thio, H.J. Lezec, and T.W. Ebbesen, "Strongly enhanced optical transmission through subwavelength holes in metal films," Physica B 279, 90-93 (2000).
[CrossRef]

Gan, C. H.

Garcia-Vidal, F. J.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

Gbur, G.

C. H. Gan and G. Gbur, "Strategies for employing surface plasmons in near-field optical readout systems," Opt. Express 14, 2385-2397 (2006), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-14-6-2385.
[CrossRef] [PubMed]

G. Gbur, H. F. Schouten, and T. D. Visser, "Achieving superresolution in near-field optical data readout systems using surface plasmons," Appl. Phys. Lett. 87, 191105 (2005).
[CrossRef]

Gosele, U.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Hashizume, J.

S. Shinada, J. Hashizume, and F. Koyama, "Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating," Appl. Phys. Lett. 83, 836-838 (2003).
[CrossRef]

Hibbins, A. P.

M. J. Lockyear, A. P. Hibbins, and J. R. Sambles, "Microwave transmission through a single subwavelength annular aperture in a metal plate," Phys. Rev. Lett. 94, 193902 (2005).
[CrossRef] [PubMed]

A. P. Hibbins, J. R. Sambles, and C. R. Lawrence, "Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate," Appl. Phys. Lett. 81, 4661-4663 (2002).
[CrossRef]

Ikari, T.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Ishihara, K.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Ito, H.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Kivshar, Y. S.

S. K. Morrison and Y. S. Kivshar, "Engineering of directional emission from photonic-crystal waveguides," Appl. Phys. Lett. 86, 081110 (2005).
[CrossRef]

Koyama, F.

S. Shinada, J. Hashizume, and F. Koyama, "Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating," Appl. Phys. Lett. 83, 836-838 (2003).
[CrossRef]

Kramper, P.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Lawrence, C. R.

A. P. Hibbins, J. R. Sambles, and C. R. Lawrence, "Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate," Appl. Phys. Lett. 81, 4661-4663 (2002).
[CrossRef]

Lezec, H. J.

Lezec, H.J.

T. Thio, H.J. Lezec, and T.W. Ebbesen, "Strongly enhanced optical transmission through subwavelength holes in metal films," Physica B 279, 90-93 (2000).
[CrossRef]

Li, Z.-B.

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
[CrossRef] [PubMed]

Linke, R. A.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

T. Thio, K. M. Pellerin, R. A. Linke, H. J. Lezec, and T. W. Ebbesen, "Enhanced light transmission through a single subwavelength aperture," Opt. Lett. 26, 1972-1974 (2001).
[CrossRef]

Liu, Z.-B.

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
[CrossRef] [PubMed]

Lockyear, M. J.

M. J. Lockyear, A. P. Hibbins, and J. R. Sambles, "Microwave transmission through a single subwavelength annular aperture in a metal plate," Phys. Rev. Lett. 94, 193902 (2005).
[CrossRef] [PubMed]

Martin-Moreno, L.

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
[CrossRef] [PubMed]

Minamide, H.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Morrison, S. K.

S. K. Morrison and Y. S. Kivshar, "Engineering of directional emission from photonic-crystal waveguides," Appl. Phys. Lett. 86, 081110 (2005).
[CrossRef]

Muller, F.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Ohashi, K.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Ozbay, E.

Pellerin, K. M.

Sambles, J. R.

M. J. Lockyear, A. P. Hibbins, and J. R. Sambles, "Microwave transmission through a single subwavelength annular aperture in a metal plate," Phys. Rev. Lett. 94, 193902 (2005).
[CrossRef] [PubMed]

A. P. Hibbins, J. R. Sambles, and C. R. Lawrence, "Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate," Appl. Phys. Lett. 81, 4661-4663 (2002).
[CrossRef]

Sandoghdar, V.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Schouten, H. F.

G. Gbur, H. F. Schouten, and T. D. Visser, "Achieving superresolution in near-field optical data readout systems using surface plasmons," Appl. Phys. Lett. 87, 191105 (2005).
[CrossRef]

Shikata, J.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Shinada, S.

S. Shinada, J. Hashizume, and F. Koyama, "Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating," Appl. Phys. Lett. 83, 836-838 (2003).
[CrossRef]

Smolyaninov, I. I.

Soukoulis, C. M.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Thio, T.

Tian, J.-G.

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
[CrossRef] [PubMed]

Visser, T. D.

G. Gbur, H. F. Schouten, and T. D. Visser, "Achieving superresolution in near-field optical data readout systems using surface plasmons," Appl. Phys. Lett. 87, 191105 (2005).
[CrossRef]

Wang, B.

B. Wang and G. P. Wang, "Directional beaming of light from a nanoslit surrounded by metallic heterostructures," Appl. Phys. Lett. 88, 013114 (2006).
[CrossRef]

Wang, G. P.

B. Wang and G. P. Wang, "Directional beaming of light from a nanoslit surrounded by metallic heterostructures," Appl. Phys. Lett. 88, 013114 (2006).
[CrossRef]

Wehrspohn, R. B.

P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
[CrossRef] [PubMed]

Yokoyama, H.

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Zang, W.-P

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

Zayats, A. V.

Zhang, C.-P.

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
[CrossRef] [PubMed]

Zhou, W.-Y.

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

Z.-B. Li, J.-G. Tian, Z.-B. Liu, W.-Y. Zhou, and C.-P. Zhang, "Enhanced light transmission through a single subwavelength aperture in layered films consisting of metal and dielectric," Opt. Express 13, 9071-9077 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-22-9071.
[CrossRef] [PubMed]

Appl. Phys. Lett. (5)

G. Gbur, H. F. Schouten, and T. D. Visser, "Achieving superresolution in near-field optical data readout systems using surface plasmons," Appl. Phys. Lett. 87, 191105 (2005).
[CrossRef]

S. Shinada, J. Hashizume, and F. Koyama, "Surface plasmon resonance on microaperture vertical-cavity surface-emitting laser with metal grating," Appl. Phys. Lett. 83, 836-838 (2003).
[CrossRef]

B. Wang and G. P. Wang, "Directional beaming of light from a nanoslit surrounded by metallic heterostructures," Appl. Phys. Lett. 88, 013114 (2006).
[CrossRef]

S. K. Morrison and Y. S. Kivshar, "Engineering of directional emission from photonic-crystal waveguides," Appl. Phys. Lett. 86, 081110 (2005).
[CrossRef]

A. P. Hibbins, J. R. Sambles, and C. R. Lawrence, "Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate," Appl. Phys. Lett. 81, 4661-4663 (2002).
[CrossRef]

Chin. Phys. Lett. (1)

Z.-B. Li, J.-G. Tian, W.-Y. Zhou, Z.-B. Liu, W.-P Zang, and C.-P. Zhang, "Highly directional emission from a subwavelength slit in metal-dielectric layered films," Chin. Phys. Lett. 23, 1207-1210 (2006).
[CrossRef]

J. Opt. Soc. Am. (1)

Jpn. J. Appl. Phys. (1)

K. Ishihara, T. Ikari, H. Minamide, J. Shikata, K. Ohashi, H. Yokoyama, and H. Ito, "Terahertz near-field imaging using enhanced transmission through a single subwavelength aperture," Jpn. J. Appl. Phys. 44, L929-L931 (2005).
[CrossRef]

Opt. Express (4)

Opt. Lett. (2)

Phys. Rev. Lett. (2)

M. J. Lockyear, A. P. Hibbins, and J. R. Sambles, "Microwave transmission through a single subwavelength annular aperture in a metal plate," Phys. Rev. Lett. 94, 193902 (2005).
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P. Kramper, M. Agio, C. M. Soukoulis, A. Birner, F. Muller, R. B. Wehrspohn, U. Gosele, and V. Sandoghdar, "Highly directional emission from photonic crystal waveguides of subwavelength width," Phys. Rev. Lett. 92, 113903 (2004).
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Science (1)

H. J. Lezec, A. Degiron, E. Devaux, R. A. Linke, L. Martin-Moreno, F. J. Garcia-Vidal, and T. W. Ebbesen, "Beaming light from a subwavelength aperture," Science 297, 820-822 (2002).
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[CrossRef]

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Figures (7)

Fig. 1.
Fig. 1.

Sketch maps of a slit in a metal film with periodic dielectric bars (a) on the input surface and (b) on the output surface.

Fig. 2.
Fig. 2.

Area-normalized transmission spectra of a bare slit (red line), a slit with dielectric bars (green line) and a slit with periodic grooves (blue line). All three slits are in the same metal film with thickness of 300 nm and slit width of 40 nm. The spectra are normalized by the fraction of the surface occupied by the slit.

Fig. 3.
Fig. 3.

The schematic diagram of transmission enhancement by CDEW model.

Fig. 4.
Fig. 4.

(a) Normalized transmittance and (b) wavelength at peak as a function of the height of dielectric bars. Other parameters of the dielectric bars are set as default.

Fig. 5.
Fig. 5.

(a) Normalized transmittance and (b) wavelength at peak as a function of the refractive index of dielectric bars. Other parameters of the dielectric bars are set as default.

Fig. 6.
Fig. 6.

Area-normalized transmission spectra of a bare slit (red line) and a slit with metal bars on the input surface (blue line). The metal bars have a period of 500 nm, height of 40 nm and width of 40 nm.

Fig. 7.
Fig. 7.

Patterns of light emitting from the slit under different incident wavelength and parameters of dielectric bars. Other parameters are set as default.

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