Plasmonic Structures Fabricated By Interference Lithography For Sensor Applications

In this work we demonstrate the use of holographic lithography for generation of large area plasmonic periodic structures. Submicrometric array of holes, with different periods and thickness, were recorded in gold films, in areas of about 1 cm2, with homogeneity similar to that of samples recorded by Focused Ion Beam. In order to check the plasmonic properties, we measured the transmission spectra of the samples. The spectra exhibit the typical surface plasmon resonances (SPR) in the infrared whose position and width present the expected behavior with the period of the array and film thickness. The shift of the peak position with the permittivity of the surrounding medium demonstrates the feasebility of the sample as large area sensors. © 2009 SPIE.7394Ebbesen, T.W., Lezec, H.J., Ghaemy, H.F., Thio, T., Wolff, P.A., Extraordinary optical transmission through sub-wavelenght hole arrays (1998) Nature, 391, pp. 667-669Ghaemy, H.F., Thio, T., Grupp, D.E., Ebbesen, T.W., Lezec, H.J., Surface plasmons enhance optical transmission through subwavelenght holes (1998) Phys. Rev. B, 58, pp. 6779-6782Lal, S., Link, S., Halas, N.J., Nano-optics from sensing to waveguiding (2007) Nature Photonics, 1, pp. 641-648Barnes, W.L., Dereux, A., Ebbesen, T.W., Surface plasmon subwavelength optics (2003) Nature, 424, pp. 824-830Brolo, A.G., Arctander, E., Gordon, R., Leathem, B., Kavanagh, K.L., Nanohole-Enhanced Raman Scattering (2004) Nano Lett, 4, pp. 2015-2018Brolo, A.G., Gordon, R., Leathem, B., Kavanagh, K.L., Surface plasmon sensor based on the enhanced light transmission through arrays of nanoholes in gold films (2004) Langmuir, 20, pp. 4813-4815Brueck, S.R.J., Optical and Interferometric Lithography- Nanotechnology Enablers (2005) Proc. IEEE, 93, pp. 1704-1721Lai, N.D., Liang, W.P., Lin, J.H., Hsu, C.C., Lin, C.H., Fabrication of two- and three-dimensional periodic structures by multi-exposure of two-beam interference technique (2005) Opt. Express, 13, pp. 9605-9611Frejlich, J., Cescato, L., Mendes, G.F., Analysis of an active stabilization system for holographic setup (1988) Appl. Opt, 27, pp. 1967-197