Surface plasmon-coupled emission on plasmonic Bragg gratings, Optics Express

Mana Toma, Koji Toma, Pavel Adam, Jiří Homola, Wolfgang Knoll, Jakub Dostalek

    Publikation: Beitrag in FachzeitschriftArtikelBegutachtung


    Surface plasmon-coupled emission (SPCE) from emitters in a close proximity to a plasmonic Bragg grating is investigated. In this study, the directional fluorescence emission mediated by Bragg-scattered surface plasmons and surface plasmons diffraction cross-coupled through a thin metallic film is observed by using the reverse Kretschmann configuration. We show that controlling of dispersion relation of these surface plasmon modes by tuning the refractive index at upper and lower interfaces of a dense sub-wavelength metallic grating enables selective reducing or increasing the intensity of the light emitted to certain directions. These observations may provide important leads for design of advanced plasmonic structures in applications areas of plasmon-enhanced fluorescence spectroscopy and nanoscale optical sources
    Seiten (von - bis)14042-14053
    FachzeitschriftOptics Express
    PublikationsstatusVeröffentlicht - 2012

    Research Field

    • Biosensor Technologies


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