Concentric ring structures as efficient SERS substrates
Date
2013
Editor(s)
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Instructor
Source Title
IEEE Journal on Selected Topics in Quantum Electronics
Print ISSN
1077-260X
Electronic ISSN
Publisher
Institute of Electrical and Electronics Engineers
Volume
19
Issue
3
Pages
1 - 5
Language
English
Type
Journal Title
Journal ISSN
Volume Title
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25
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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.
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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