23_18i/2011Photonic Crystals: Interplay of Resonant Cavity Modes with Localized Surface Plasmons: Optical Absorption Properties of Bragg Stacks Integrating Gold Nanoparticles (Adv. Mater. 18/2011)

Silica-coated gold nanocolloids (represented as shiny red cores surrounded by transparent coronas) are embedded in porous one-dimensional photonic crystals that consist of alternate layers of spherical SiO2 beads and smaller faceted TiO2 crystallites. Strong enhancement of the optical absorption at selected spectral ranges is observed as a consequence of the interplay between localized surface plasmons and optical cavity resonant modes, as reported by Hernán Míguez, Luis Liz-Marzán, and co-workers on p. 2108.

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