Journal
APPLIED SURFACE SCIENCE
Volume 282, Issue -, Pages 133-137Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.05.083
Keywords
Confined laser ablation; Nanoparticle deposition; Plasma spectroscopy; Surface plasmon resonance; Pulsed laser deposition
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Funding
- Science Foundation Ireland [09/RFP/PHY2422, 12/TIDA/12425]
- Science Foundation Ireland (SFI) [09/RFP/PHY2422] Funding Source: Science Foundation Ireland (SFI)
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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 mu m 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. (C) 2013 Elsevier B.V. All rights reserved.
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