Surface plasmon-coupled emission on plasmonic Bragg gratings

Mana Toma, Koji Toma, Pavel Adam, Jirí Homola, Wolfgang Knoll, Jakub Dostálek

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)14042-14053
Number of pages12
JournalOptics Express
Issue number13
Publication statusPublished - 2012 Jun 18
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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