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2021-05-17Zeitschriftenartikel DOI: 10.3389/fchem.2021.680905
Excitation Conditions for Surface-Enhanced Hyper Raman Scattering With Biocompatible Gold Nanosubstrates
dc.contributor.authorDusa, Arpad
dc.contributor.authorMadzharova, Fani
dc.contributor.authorKneipp, Janina
dc.date.accessioned2021-07-08T14:20:18Z
dc.date.available2021-07-08T14:20:18Z
dc.date.issued2021-05-17none
dc.date.updated2021-05-31T06:54:19Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/23722
dc.description.abstractSurface enhanced hyper Raman scattering (SEHRS) can provide many advantages to probing of biological samples due to unique surface sensitivity and vibrational information complementary to surface-enhanced Raman scattering (SERS). To explore the conditions for an optimum electromagnetic enhancement of SEHRS by dimers of biocompatible gold nanospheres and gold nanorods, finite-difference time-domain (FDTD) simulations were carried out for a broad range of excitation wavelengths from the visible through the short-wave infrared (SWIR). The results confirm an important contribution by the enhancement of the intensity of the laser field, due to the two-photon, non-linear excitation of the effect. For excitation laser wavelengths above 1,000 nm, the hyper Raman scattering (HRS) field determines the enhancement in SEHRS significantly, despite its linear contribution, due to resonances of the HRS light with plasmon modes of the gold nanodimers. The high robustness of the SEHRS enhancement across the SWIR wavelength range can compensate for variations in the optical properties of gold nanostructures in real biological environments.eng
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectgold nanoparticleseng
dc.subjectgold nanorodseng
dc.subjectfinite-difference time-domaineng
dc.subjectelectromagnetic enhancementeng
dc.subjectdimereng
dc.subjectsurface-enhanced hyper Raman scatteringeng
dc.subjectsurface-enhanced Raman scatteringeng
dc.subjecttwo-photon excitationeng
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftennone
dc.titleExcitation Conditions for Surface-Enhanced Hyper Raman Scattering With Biocompatible Gold Nanosubstratesnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/23722-9
dc.identifier.doi10.3389/fchem.2021.680905none
dc.identifier.doihttp://dx.doi.org/10.18452/23059
dc.type.versionpublishedVersionnone
local.edoc.container-titleFrontiers in Chemistrynone
local.edoc.pages10none
local.edoc.anmerkungThis article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin.none
local.edoc.type-nameZeitschriftenartikel
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameFrontiers Medianone
local.edoc.container-publisher-placeLausannenone
local.edoc.container-volume9none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber680905none
dc.identifier.eissn2296-2646
local.edoc.affiliationDusa, Arpad; Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germanynone
local.edoc.affiliationMadzharova, Fani; Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germanynone
local.edoc.affiliationKneipp, Janina; Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germanynone

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