Concentric ring structures as efficient SERS substrates
Date
2013
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Abstract
Plasmonic nanopatterned structures that can work as highly efficient surface-enhanced Raman scattering (SERS) substrates are presented in this study. A 'coupled' concentric ring structure has been designed, fabricated, tuned, and compared to an 'etched' concentric ring structure and plain gold film via SERS experiments. The proposed design gives Raman signal intensity 630 times larger than plain gold film and 8 times larger than an 'etched' concentric ring structure. The surface plasmons were imaged with the fluorescence imaging technique and supporting numerical simulations were done.
Source Title
IEEE Journal on Selected Topics in Quantum Electronics
Publisher
Institute of Electrical and Electronics Engineers
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Keywords
Concentric ring, Fluorescence imaging, Surface plasmon (SP), Surface-enhanced Raman spectroscopy (SERS), Concentric ring structures, Concentric rings, Fluorescence imaging, Raman signal intensity, SERS substrate, Surface enhanced Raman Scattering (SERS), Surface enhanced Raman spectroscopy, Surface plasmons, Fluorescence, Gold, Imaging techniques, Metallic films, Plasmons, Raman spectroscopy, Surface scattering, Substrates
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Language
English