Substrate-based platform for boosting the surface-enhanced Raman of plasmonic nanoparticles
作者： Qiao Min , Yuanjie Pang , Daniel J. Collins , Nikita A. Kuklev , Kristy Gottselig
DOI: 10.1364/OE.19.001648
关键词: Light scattering 、 Surface plasmon resonance 、 Nanoprobe 、 Raman scattering 、 Surface plasmon 、 Optics 、 Materials science 、 Plasmonic nanoparticles 、 Raman spectroscopy 、 Nanoparticle
摘要: Metal nanoparticles allow for surface-enhanced Raman scattering (SERS), with applications including spectroscopy and highly-multiplexed biolabels. Despite advances in design nanoparticles, the SERS from these systems is still weak when compared randomly roughened substrates, this limits their efficacy many applications. Here, we coherently boost signal of colloidally-synthesized silver nano-prisms over 50 × by using multilayer substrates. Theoretical calculations verify enhancement, uncover near-field response. This points way toward a versatile platform greater enhancement nanoparticles.
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