Spatially and polarization resolved plasmon mediated transmission through continuous metal films

Y. Jourlin (1) , S. Tonchev (1) , A.V. Tishchenko (1) , C. Pedri (1) , C. Veillas (1) , O. Parriaux (1) , A. Last (2) , Y. Lacroute (3)

1 LHC - Laboratoire Hubert Curien [Saint Etienne]
2 FZK - Forschungszentrum Karlsruhe
3 ICB - Laboratoire Interdisciplinaire Carnot de Bourgogne

The experimental demonstration and characterization is made of the plasmon-mediated resonant transmission through an embedded undulated continuous thin metal film under normal incidence. 1D undulations are shown to enable a spatially resolved polarisation filtering whereas 2D undulations lead to spatially resolved, polarization independent transmission. Whereas the needed submicron microstructure lends itself in principle to CD-like low-cost mass replication by means of injection moulding and embossing, the present paper demonstrates the expected transmission effects on experimental models based on metal-coated photoresist gratings. The spectral and angular dependence in the neighbourhood of resonance are investigated and the question of the excess losses exhibited by surface plasmons is discussed

Keywords: Diffraction gratings; Surface plasmons; Metals; Thin films; optical properties

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Y. Jourlin, S. Tonchev, A.V. Tishchenko, C. Pedri, C. Veillas, et al.. Spatially and polarization resolved plasmon mediated transmission through continuous metal films. Optics Express, 2009, 17 (14), pp.12155-12166. ⟨10.1364/OE.17.012155⟩. ⟨ujm-00401601⟩