Spectral and Directional Reshaping of Fluorescence in Large Area Self-Assembled Plasmonic-Photonic Crystals
Boyang Ding, Calin Hrelescu, Nikita Arnold, Goran Isic, Thomas A. Klar
Volume: 13, Issue: 2, 1 January 2013
378 - 386
Plasmonic crystal, fluorescence reshaping, localized surface plasmon resonances, Bloch modes, void plasmons, Purcell effect
Spectral and directional reshaping of fluorescence from dye molecules embedded in self-assembled hybrid plasmonic-photonic crystals has been examined. The hybrid crystals comprise two-dimensional hexagonal arrays of dyedoped dielectric nanospheres, capped with silver semishells. Comparing the reshaped fluorescence spectra with measured transmission/reflection spectra and numerical calculations reveals that the spectral and directional reshaping of fluorescence is the result of its coupling to photonic crystal Bloch modes and to void plasmons localized inside the silver caps.
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