Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5359678 | Applied Surface Science | 2013 | 5 Pages |
Abstract
Spatially confined laser ablation of silver was used to form long-lived dense plasma for single-shot deposition of a nanoparticle film. The expansion of the ablation plume was restricted by placing a glass substrate at 50 μm from the silver target surface. Time-resolved optical emission spectroscopy showed that the confined plasma is sustained for longer time than for free ablation. A single laser shot is sufficient to produce a layer of silver nanoparticles on the substrate. In absorption the nanoparticle layer displays a surface plasmon resonance which is comparable to films made by conventional pulsed laser deposition in vacuum.
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Authors
T. Donnelly, J.G. Lunney,