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2019-08-16Zeitschriftenartikel DOI: 10.18452/20841
Plasmon Enhanced Two-Photon Probing with Gold and Silver Nanovoid Structures
dc.contributor.authorMadzharova, Fani
dc.contributor.authorÖhl, Denis
dc.contributor.authorJunqueira, João
dc.contributor.authorSchuhmann, Wolfgang
dc.contributor.authorKneipp, Janina
dc.date.accessioned2019-11-27T09:29:43Z
dc.date.available2019-11-27T09:29:43Z
dc.date.issued2019-08-16none
dc.identifier.other10.1002/adom.201900650
dc.identifier.urihttp://edoc.hu-berlin.de/18452/21575
dc.description.abstractNonlinear optical signals benefit greatly from the enhanced local optical fields in the vicinity of plasmonic nanostructures. Gold and silver nanovoid arrays of varying size and thickness, fabricated by electrochemical deposition are shown here to act as stable plasmonic nanostructures and to enhance the weak, incoherent two‐photon excited process of surface‐enhanced hyper Raman scattering (SEHRS) with high microscopic homogeneity and reproducibility that typical SEHRS experiments have not been addressing so far. Silver nanovoids yield stronger enhancement than gold voids, but gold nanovoid arrays show improved stability at high laser excitation intensities. Combined screening experiments using SEHRS and second‐harmonic generation (SHG) reveal a dependence of the enhancement of both signals on void structural parameters and similar optimum geometries for both two‐photon processes. The results confirm the suggested important role for the enhancement of the near‐infrared excitation field in SEHRS and suggest SHG as a fast screening tool to identify nanostructures that can support high SEHRS enhancement.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY-NC-ND 4.0) Attribution-NonCommercial-NoDerivatives 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc530 Physiknone
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitennone
dc.subject.ddc670 Industrielle Fertigungnone
dc.titlePlasmon Enhanced Two-Photon Probing with Gold and Silver Nanovoid Structuresnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/21575-3
dc.identifier.doihttp://dx.doi.org/10.18452/20841
dc.type.versionpublishedVersionnone
local.edoc.container-titleAdvanced optical materialsnone
local.edoc.pages9none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameWiley-VCHnone
local.edoc.container-publisher-placeWeinheimnone
local.edoc.container-volume7none
local.edoc.container-issue21none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber1900650none
dc.identifier.eissn2195-1071

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