Nanosecond infrared laser-induced precipitation of silver nanoparticles in glass
AbstractWe describe a novel plasmonic hybrid nanostructure based on a silver island film covered with a dielectric silica layer. The thickness of the silica layer is varied from 0 to approximately 46 nm on a single sample, thus allowing for continuous variation of the interaction strength between plasmon excitations in the metallic film and the excited states of pigments comprising photosynthetic complexes used to probe this interaction. While the largest separation between the silver film and photosynthetic complexes provides fluorescence featuring mono-exponential decay, thinner silica spacer distances show bi-exponential decay. The intensity of the fast component, which is attributed to the emission of photosynthetic complexes coupled to plasmon excitations, strongly decreases as a function of the spacer thickness. The interaction is stronger for excitation wavelengths resonant with plasmon absorption in the metallic layer.
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How to Cite
A. Wolak, M. Grabiec, O. Véron, J.-P. Blondeau, and K. Dzierzega, “Nanosecond infrared laser-induced precipitation of silver nanoparticles in glass”, Photon.Lett.PL, vol. 5, no. 2, pp. pp. 54–56, Jun. 2013.