dc.contributor.author
Heeg, Sebastian
dc.contributor.author
Fernandez-García, Roberto
dc.contributor.author
Oikonomou, Antonios
dc.contributor.author
Schedin, Fred
dc.contributor.author
Narula, Rohit
dc.contributor.author
Maier, Stefan A.
dc.contributor.author
Vijayaraghavan, Aravind
dc.contributor.author
Reich, Stephanie
dc.date.accessioned
2018-06-08T03:43:24Z
dc.date.available
2014-03-04
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/15794
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-19981
dc.description.abstract
We characterize plasmonic enhancement in a hotspot between two Au nanodisks
using Raman scattering of graphene. Single layer graphene is suspended across
the dimer cavity and provides an ideal two-dimensional test material for the
local near-field distribution. We detect a Raman enhancement of the order of
103 originating from the cavity. Spatially resolved Raman measurements reveal
a near-field localization one order of magnitude smaller than the wavelength
of the excitation, which can be turned off by rotating the polarization of the
excitation. The suspended graphene is under tensile strain. The resulting
phonon mode softening allows for a clear identification of the enhanced signal
compared to unperturbed graphene.
en
dc.rights.uri
http://pubs.acs.org/page/policy/nih/index.html
dc.subject
Raman spectroscopy
dc.subject
plasmonic cavity
dc.subject
suspended graphene
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik
dc.title
Polarized Plasmonic Enhancement by Au Nanostructures Probed through Raman
Scattering of Suspended Graphene
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
Nano Letters. - 13 (2013), 1, S.301-308
dc.identifier.sepid
33201
dcterms.bibliographicCitation.doi
10.1021/nl3041542
dcterms.bibliographicCitation.url
http://pubs.acs.org/doi/abs/10.1021/nl3041542
refubium.affiliation
Physik
de
refubium.affiliation.other
Institut für Experimentalphysik
refubium.mycore.fudocsId
FUDOCS_document_000000019750
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000003128
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1530-6984