OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 31 — Nov. 1, 2011
  • pp: G11–G16

Influence of film thickness on the optical transmission through subwavelength single slits in metallic thin films

Fabio A. Ferri, Victor A. G. Rivera, Sérgio P. A. Osorio, Otávio B. Silva, Antonio R. Zanatta, Ben-Hur V. Borges, John Weiner, and Euclydes Marega, Jr.  »View Author Affiliations

Applied Optics, Vol. 50, Issue 31, pp. G11-G16 (2011)

View Full Text Article

Enhanced HTML    Acrobat PDF (411 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Silver and gold films with thicknesses in the range of 120– 450 nm were evaporated onto glass substrates. A sequence of slits with widths varying between 70 and 270 nm was milled in the films using a focused gallium ion beam. We have undertaken high-resolution measurements of the optical transmission through the single slits with 488.0 nm (for Ag) and 632.8 nm (for Au) laser sources aligned to the optical axis of a microscope. Based on the present experimental results, it was possible to observe that (1) the slit transmission is notably affected by the film thickness, which presents a damped oscillatory behavior as the thickness is augmented, and (2) the transmission increases linearly with increasing slit width for a fixed film thickness.

© 2011 Optical Society of America

OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(240.6680) Optics at surfaces : Surface plasmons
(310.6860) Thin films : Thin films, optical properties
(310.6628) Thin films : Subwavelength structures, nanostructures

Original Manuscript: June 22, 2011
Revised Manuscript: August 1, 2011
Manuscript Accepted: August 1, 2011
Published: September 15, 2011

Fabio A. Ferri, Victor A. G. Rivera, Sérgio P. A. Osorio, Otávio B. Silva, Antonio R. Zanatta, Ben-Hur V. Borges, John Weiner, and Euclydes Marega, Jr., "Influence of film thickness on the optical transmission through subwavelength single slits in metallic thin films," Appl. Opt. 50, G11-G16 (2011)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. W. L. Barnes, A. Dereux, and T. W. Ebbesen, “Surface plasmon subwavelength optics,” Nature 424, 824–830 (2003). [CrossRef] [PubMed]
  2. E. Feigenbaum and H. A. Atwater, “Resonant guided wave networks,” Phys. Rev. Lett. 104, 147402 (2010). [CrossRef] [PubMed]
  3. T. W. Ebbesen, H. J. Lezec, H. F. Ghaemi, T. Thio, and P. A. Wolf, “Extraordinary optical transmission through sub-wavelength hole arrays,” Nature 391, 667–669 (1998). [CrossRef]
  4. J. A. Porto, F. J. Garcia-Vidal, and J. B. Pendry, “Transmission resonances on metallic gratings with very narrow slits,” Phys. Rev. Lett. 83, 2845–2848 (1999). [CrossRef]
  5. Y. Takakura, “Optical resonance in a narrow slit in a thick metallic screen,” Phys. Rev. Lett. 86, 5601–5603 (2001). [CrossRef] [PubMed]
  6. Y. Xie, A. R. Zakharian, J. V. Moloney, and M. Mansuripur, “Transmission of light through a periodic array of slits in a thick metallic film,” Opt. Express 13, 4485–4491 (2005). [CrossRef] [PubMed]
  7. 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). [CrossRef] [PubMed]
  8. G. Gay, O. Alloschery, B. Viaris de Lesegno, J. Weiner, and H. J. Lezec, “Surface wave generation and propagation on metallic subwavelength structures measured by far-field interferometry,” Phys. Rev. Lett. 96, 213901 (2006). [CrossRef] [PubMed]
  9. G. Gay, O. Alloschery, B. Viaris de Lesegno, C. O’Dwyer, J. Weiner, and H. J. Lezec, “The optical response of nanostructured surfaces and the composite diffracted evanescent wave model,” Nat. Phys. 2, 262–267 (2006). [CrossRef]
  10. F. Kalkum, G. Gay, O. Alloschery, J. Weiner, H. J. Lezec, Y. Xie, and M. Mansuripur, “Surface-wave interferometry on single subwavelength slit-groove structures fabricated on gold films,” Opt. Express 15, 2613–2621 (2007). [CrossRef] [PubMed]
  11. D. Pacifici, H. J. Lezec, H. A. Atwater, and J. Weiner, “Quantitative determination of optical transmission through subwavelength slit arrays in Ag films: role of surface wave interference and local coupling between adjacent slits,” Phys. Rev. B 77, 115411 (2008). [CrossRef]
  12. E. Fontana, “Thickness optimization of metal films for the development of surface-plasmon-based sensors for nonabsorbing media,” Appl. Opt. 45, 7632–7642 (2006). [CrossRef] [PubMed]
  13. O. T. A. Janssen, H. P. Urbach, and G. W. Hooft, “On the phase of plasmons excited by slits in a metal film,” Opt. Express 14, 11823–11832 (2006). [CrossRef] [PubMed]
  14. X. Shou, A. Agrawal, and A. Nahata, “Role of metal film thickness on the enhanced transmission properties of a periodic array of subwavelength apertures,” Opt. Express 13, 9834–9840 (2005). [CrossRef] [PubMed]
  15. J. H. Kim and P. J. Moyer, “Thickness effects on the optical transmission characteristics of small hole arrays on thin gold films,” Opt. Express 14, 6595–6603 (2006). [CrossRef] [PubMed]
  16. Y. Pang, C. Genet, and T. W. Ebbesen, “Optical transmission through subwavelength slit apertures in metallic films,” Opt. Commun. 280, 10–15 (2007). [CrossRef]
  17. J.-Y. Laluet, A. Drezet, C. Genet, and T. W. Ebbesen, “Generation of surface plasmons at single subwavelength slits: from slit to ridge plasmon,” New J. Phys. 10, 105014(2008). [CrossRef]
  18. S. A. Maier, Plasmonics: Fundamentals and Applications (Springer, 2007).
  19. E. D. Palik, Handbook of Optical Constants of Solids(Academic, 1985).
  20. Comsol Multiphysics, http://www.comsol.com.
  21. E. Prodan, C. Radloff, N. J. Halas, and P. Nordlander, “A hybridization model for the plasmon response of complex nanostructures,” Science 302, 419–422 (2003). [CrossRef] [PubMed]
  22. F. J. Garcia-Vidal and L. Martin-Moreno, “Transmission and focusing of light in one-dimensional periodically nanostructured metals,” Phys. Rev. B 66, 155412 (2002). [CrossRef]
  23. J. Weiner, “The electromagnetics of light transmission through subwavelength slits in metallic films,” Opt. Express 19, 16139–16153 (2011). [CrossRef] [PubMed]
  24. Z.-B. Li, Y.-H. Yang, X.-T. Kong, W.-Y. Zhou, and J.-G. Tian, “Fabry–Perot resonance in slit and grooves to enhance the transmission through a single subwavelength slit,” J. Opt. A 11, 105002 (2009). [CrossRef]
  25. M. Born and E. Wolf, Principles of Optics (Pergamon, 1993).
  26. L.-H. Shyu, C.-P. Chang, and Y.-C. Wang, “Influence of intensity loss in the cavity of a folded Fabry–Perot interferometer on interferometric signals,” Rev. Sci. Instrum. 82, 063103 (2011). [CrossRef] [PubMed]
  27. H. W. Kihm, K. G. Lee, D. S. Kima, J. H. Kang, and Q.-H. Park, “Control of surface plasmon generation efficiency by slit-width tuning,” Appl. Phys. Lett. 92, 051115 (2008). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited