F López-Tejeira et al 2008 New J. Phys. 10 033035 doi:10.1088/1367-2630/10/3/033035
F López-Tejeira1, Sergio G Rodrigo1, L Martín-Moreno1,9, F J García-Vidal2, E Devaux3, J Dintinger3,7, T W Ebbesen3, J R Krenn4, I P Radko5, S I Bozhevolnyi5, M U González6,8, J C Weeber6 and A Dereux6
Show affiliationsSurface plasmon-polaritons have recently attracted renewed interest in the scientific community for their potential in sub-wavelength optics, light generation and non-destructive sensing. Given that they cannot be directly excited by freely propagating light due to their intrinsic binding to the metal surface, the light–plasmon coupling efficiency becomes of crucial importance for the success of any plasmonic device. Here, we present a comprehensive study on the modulation (enhancement or suppression) of such a coupling efficiency by means of one-dimensional surface corrugation. Our approach is based on simple wave interference and enables us to make quantitative predictions which have been experimentally confirmed at both the near-infrared and telecom ranges.
71.36.+c Polaritons (including photon-phonon and photon-magnon interactions)
Issue 3 (March 2008)
Received 21 December 2007
Published 27 March 2008
F López-Tejeira et al 2008 New J. Phys. 10 033035
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