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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 6 — Mar. 19, 2007
  • pp: 3496–3501

Transmission enhancement through a trench-surrounded nano metallic slit by bump reflectors

C. M. Wang, H. I Huang, C. C. Chao, J. Y. Chang, and Y. Sheng  »View Author Affiliations

Optics Express, Vol. 15, Issue 6, pp. 3496-3501 (2007)

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We propose using a pair of bumps bordering the conventional trench-surrounded metal nano slit in order to confine the surface waves and further enhance the slit transmission. The bump height of 1μm is larger than the depth of penetration on air side of the surface waves. The reflectivity of such bumps is larger than 95%. A very large slit transmission, which is 50% of the energy of the incident beam impinging on the entire size 13μm of the trench-surrounded slit structure, is obtained through the metallic slit of 50nm width and 400nm depth. The bumps enhance the transmission by 1.75 fold.

© 2007 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1960) Diffraction and gratings : Diffraction theory
(240.6690) Optics at surfaces : Surface waves

ToC Category:
Optics at Surfaces

Original Manuscript: February 20, 2007
Manuscript Accepted: March 2, 2007
Published: March 19, 2007

C. M. Wang, H. I. Huang, C. C. Chao, J. Y. Chang, and Y. Sheng, "Transmission enhancement through a trench-surrounded nano metallic slit by bump reflectors," Opt. Express 15, 3496-3501 (2007)

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  1. T. W. Ebbesen, H. J. Lezec, H. F. Ghaemi, T. Thio, and P. A. Wolff, "Extraordinary optical transmission.
  2. T. Thio, K. M. Pellerin, and R. A. Linke, "Enhanced light transmission through a single subwavelength aperture," Opt. Lett. 24, 1972 (2001). [CrossRef]
  3. T. Thio, J. J. Lezec, T. W. Ebbesen, K. M. Pellerin, G. D. Lewen, A. Nahata, and R. A. Linke, "Giant optical transmission of subwavelength apertures: Physics and applications," Nanotechnology 13, 429 (2002). [CrossRef]
  4. F. J. Garcìa-Vidal, H. J. Lezec, T. W. Ebbesen, and L. Martìn-Moreno, "Multiple paths to enhance optical transmission through a single subwavelength slit," Phys. Rev. Lett. 90, 213901(2003). [CrossRef] [PubMed]
  5. H. J. Lezec and T. Thio, "Diffracted evanescent wave model for enhanced and suppressed optical transmission through subwavelength hole arrays," Opt. Express 12, 3629 (2004). [CrossRef] [PubMed]
  6. A. Degiron and T. W. Ebbesen, "Analysis of the transmssion process through single aperture surrounded by periodic corrugations," Opt. Express 12, 3694 (2004). [CrossRef] [PubMed]
  7. J. A. Sánchez-Gil and A. A. Maradudin, "Near-field and far-field scattering of surface plasmon polaritons by one-dimensional surface defects," Phys. Rev. B,  60, 8359 (1999). [CrossRef]
  8. J. A. Sánchez-Gil and A. A. Maradudin, "Resonant scattering of surface-plasmon polariton pulses by nanoscale metal defects," Opt. Lett. 28, 2255 (2003). [CrossRef] [PubMed]
  9. D. J. C. Weeber, M. U. González, A. L. Baudrion, and A. Dereux, "Surface plasmon routing along right angle bent metal strips," Appl. Phys. Lett. 87, 221101 (2005). [CrossRef]
  10. E. D. Palik, Handbook of Optical Constants of Solids (Academic Press, Boston, 1985).
  11. Y. Takakura, "Optical resonance in a narrow slit in a thick metallic screen," Phys. Rev. Lett. 86, 5601 (2001). [CrossRef] [PubMed]
  12. F. Yang and J. R. Sambles, "Resonant transmission of microwaves through a narrow metallic slit," Phys. Rev Lett. 89, 063901 (2002). [CrossRef] [PubMed]
  13. B. Ung and Y Sheng, "Interference of surface waves in a metallic nanoslit," Opt. Express. 15, 1182-1191 (2007). [CrossRef] [PubMed]

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