Enhanced transmission through arrays of subwavelength holes in gold films coated by a finite dielectric layer

S. Xiao; N. A. Mortensen; M. Qiu

doi:10.2971/jeos.2007.07009

Journal of the European Optical Society - Rapid publications, Vol 2 (2007)

Enhanced transmission through arrays of subwavelength holes in gold films coated by a finite dielectric layer

S. Xiao, N. A. Mortensen, M. Qiu

Abstract

Enhanced transmissions through a gold film with arrays of subwavelength holes are theoretically studied, employing the rigid full vectorial three dimensional finite difference time domain method. Influence of air-holes shape to the transmission is firstly studied, which confirms two different resonances attributing to the enhanced transmission: the localized waveguide resonance and periodic surface plasmon resonances. For the film coated with dielectric layers, calculated results show that in the wavelength region of interest the localized waveguide resonant mode attributes to sensing rather than the periodic gold-glass surface plasmon mode. Although the detected peak is fairly broad and the shift is not too pronounced, we emphasize the contribution for sensing from the localized waveguide resonant mode, which may opens up new ways to design surface plasmon based sensors.

Full Text: PDF

Citation Details

Cite this article

References

T. W. Ebbesen, H. J. Lezec, H. F. Ghaemi, T. Thio, and P. A. Wolff, "Extraordinary optical transmission through sub-wavelength hole arrays" Nature 391, 667-669 (1998).

H. F. Ghaemi, T. Thio, D. E. Grupp, T. W. Ebbesen, and H. J. Lezec, "Surface plasmons enhance optical transmission through subwavelength holes" Phys. Rev. B 58, 6779-6782 (1998).

J. A. Porto, F. J. Garcia-Vidal, and P. B. Pendry, "Transmission resonances on metallic gratings with very narrow slits" Phys. Rev. Lett. 83, 2845-2853 (1999).

L. Martin-Moreno, F. J. García-Vidal, H. J. Lezec, K. M. Pellerin, T. Thio, J. B. Pendry, and T. W. Ebbesen, "Theory of extraordinary optical transmission through subwavelength hole arrays" Phy. Rev. Lett. 86, 1114-1117 (2001).

A. Krishnan, T. Thio, T. J. Kim, H. J. Lezec, T. W. Ebbesen, P. A. Wolff, J. B. Pendry, L. Martin-Moreno, and F. J. Garcia-Vidal, "Evanescently coupled resonance in surface plasmon enhanced transmission" Opt. Commun. 200, 1-7 (2001).

K. J. Klein Koerkamp, S. Enoch, F. B. Segerink, N. F. van Hulst, and L. Kuipers, "Strong influence of hole shape on extraordinary transmission through periodic arrays of subwavelength holes" Phys. Rev. Lett. 92, 183901 (2004).

K. L. van der Molen, K. J. Klein Koerkamp, S. Enoch, F. B. Segerink, N. F. van Hulst, and L. Kuipers, "Role of shape and localized resonances in extraordinary transmission through periodic arrays of subwavelength holes: Experiment and theory" Phys. Rev. B 72, 045421 (2005).

F. J. Garcia-Vidal, E. Moreno, J. A. Porto, and L. Martin-Moreno, "Transmission of light through a single rectangular hole" Phys. Rev. Lett. 95, 103901 (2005).

Z. Ruan and M. Qiu, "Enhanced transmission through periodic arrays of subwavelength holes: The role of localized waveguide resonances" Phys. Rev. Lett. 96, 233901 (2006).

J. Homola, S. Yee, and G. Gauglitz, "Surface plasmon resonance sensors: review" Sensor Actuat. B:Chem. 54, 3-15 (1999).

A. G. Brolo, R. Gordon, B. Leathem, and K. L. Kavanagh, "Surface plasmon sensor based on the enhanced light transmission through arrays of nanoholes in gold films" Langmuir 20, 4813- 4815 (2004).

T. Rindzevicius, Y. Alaverdyan, A. Dahlin, F. Hook, D. S. Sutherland, and M. Kall, "Plasmonic sensing characteristics of single nanometric holes" Nano Lett. 5, 2335 - 2339 (2005).

K. A. Tetz, L. Pang, and Y. Fainman, "High-resolution surface plasmon resonance sensor based on linewidth-optimized nanohole array transmittance" Opt. Lett. 31, 1528 - 1530 (2006).

A. Taflove, Computational Electrodynamics: The Finite-Difference Time-Domain Method (2 edn. Artech House INC, Norwood, 2000).

S. Xiao, L. Liu, and M. Qiu, "Resonator channel drop filters in a plasmon-polaritons metal" Opt. Express 14, 2932-2937 (2006).

E. D. Palik, Handbook of Optical Constants of Solids (Academic, New York, 1985).

S. Xiao and N. A. Mortensen, "Highly dispersive photonic bandgap- edge optofluidic biosensors" JEOS:RP. 1, 06026 (2006).