Show simple item record

dc.contributor.authorYue, Weisheng
dc.contributor.authorWang, Zhihong
dc.contributor.authorWhittaker, John
dc.contributor.authorLopez-royo, Francisco
dc.contributor.authorYang, Yang
dc.contributor.authorZayats, Anatoly
dc.date.accessioned2017-04-10T07:49:49Z
dc.date.available2017-04-10T07:49:49Z
dc.date.issued2017
dc.identifier.citationYue W, Wang Z, Whittaker J, Lopez-royo F, Yang Y, et al. (2017) Amplification of Surface-Enhanced Raman Scattering Due to Substrate-Mediated Localized Surface Plasmons in Gold Nanodimers. J Mater Chem C. Available: http://dx.doi.org/10.1039/c7tc00667e.
dc.identifier.issn2050-7526
dc.identifier.issn2050-7534
dc.identifier.doi10.1039/c7tc00667e
dc.identifier.urihttp://hdl.handle.net/10754/623067
dc.description.abstractSurface-enhanced Raman scattering (SERS) is ubiquitous in chemical and biochemical sensing, imaging and identification. Maximizing SERS enhancement is a continuous effort focused on the design of appropriate SERS substrates. Here we show that significant improvement in a SERS signal can be achieved with substrates combining localized surface plasmon resonances and a nonresonant plasmonic substrate. By introducing a continuous gold (Au) film underneath Au nanodimers antenna arrays, an over 10-fold increase in SERS enhancement is demonstrated. Triangular, rectangle and disc dimers were studied, with bowtie antenna providing highest SERS enhancement. Simulations of electromagnetic field distributions of the Au nanodimers on the Au film support the observed enhancement dependences. The hybridization of localized plasmonic modes with the image modes in a metal film provides a straightforward way to improve SERS enhancement in designer SERS substrate.
dc.description.sponsorshipThe authors would like to thank Dr. Francisco Rodriguez Fortuno (King’s College London) for the discussions of the numerical simulations.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/TC/C7TC00667E#!divAbstract
dc.rightsArchived with thanks to J. Mater. Chem. C
dc.subjectSurface-enhanced Raman scattering (SERS)
dc.subjectnanoantennas
dc.subjectlocalized surface plasmon (LSP)
dc.subjectelectron-beam lithography
dc.titleAmplification of Surface-Enhanced Raman Scattering Due to Substrate-Mediated Localized Surface Plasmons in Gold Nanodimers
dc.typeArticle
dc.contributor.departmentNanofabrication Core Lab
dc.contributor.departmentPatterning
dc.identifier.journalJournal of Materials Chemistry C
dc.eprint.versionPost-print
dc.contributor.institutionInstitute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu 610209, P. R. China
dc.contributor.institutionNational Graphene Institute, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
dc.contributor.institutionBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
dc.contributor.institutionDepartment of Physics, King’s College London, Strand, London WC2R 2LS, United Kingdom
kaust.personWang, Zhihong
refterms.dateFOA2018-03-28T00:00:00Z


Files in this item

Thumbnail
Name:
c7tc00667e.pdf
Size:
3.538Mb
Format:
PDF
Description:
Accepted Manuscript

This item appears in the following Collection(s)

Show simple item record