Spectral and Directional
Reshaping of Fluorescence
in Large Area Self-Assembled Plasmonic–Photonic Crystals
- Publication date
- Publisher
Abstract
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 dye-doped 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