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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Published Version (Please cite this version)

Language

English