Fast fabrication of a Ag nanostructure substrate using the femtosecond laser for broad-band and tunable plasmonic enhancement.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22551343.
- Also identified by DOI 10.1021/nn300947n.
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Abstract
Using a femtosecond laser, we have transformed the laser-direct-writing technique into a highly efficient method that can process AgO(x) thin films into Ag nanostructures at a fast scanning rate of 2000 μm(2)/min. The processed AgO(x) thin films exhibit broad-band enhancement of optical absorption and effectively function as active SERS substrates. Probing of the plasmonic hotspots with dyed polymer beads indicates that these hotspots are uniformly distributed over the treated area.
Medical subject headings
- Gold
- Lasers
- Molecular Imprinting
- Nanoparticles
- Surface Plasmon Resonance