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arXiv · 0712.3771

Modulation of surface plasmon coupling-in by one-dimensional surface corrugation

F. Lopez-Tejeira·Sergio G. Rodrigo·L. Martin-Moreno·F. J. Garcia-Vidal·E. Devaux·J. Dintinger·T. W. Ebbesen·J. R. Krenn·I. P. Radko·S. I. Bozhevolnyi·M. U. Gonzalez·J. C. Weeber·A. Dereux
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Abstract

Surface 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 intrinsical 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 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 infra-red and telecom ranges.

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F. Lopez-Tejeira, Sergio G. Rodrigo, L. Martin-Moreno, F. J. Garcia-Vidal, E. Devaux, J. Dintinger, T. W. Ebbesen, J. R. Krenn, I. P. Radko, S. I. Bozhevolnyi, M. U. Gonzalez, J. C. Weeber, A. Dereux. 2008-02-28. Modulation of surface plasmon coupling-in by one-dimensional surface corrugation. https://doi.org/10.1088/1367-2630/10/3/033035

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