Red-Shift Effects in Surface Enhanced Raman Spectroscopy: Spectral or Intensity Dependence of the Near-Field?

Handle URI:
http://hdl.handle.net/10754/613011
Title:
Red-Shift Effects in Surface Enhanced Raman Spectroscopy: Spectral or Intensity Dependence of the Near-Field?
Authors:
Colas, Florent; Cottat, Maximilien; Gillibert, Raymond; Guillot, Nicolas; Djaker, Nadia; Lidgi-Guigui, Nathalie; Toury, Timothée; Barchiesi, Dominique; Toma, Andrea; Di Fabrizio, Enzo M. ( 0000-0001-5886-4678 ) ; Gucciardi, Pietro Giuseppe; de la Chapelle, Marc Lamy
Abstract:
Optimum amplification in Surface Enhanced Raman Scattering (SERS) from individual nanoantennas is expected when the excitation is slightly blue-shifted with respect to the Localized Surface Plasmon Resonance (LSPR), so that the LSPR peak falls in the middle between the laser and the Stokes Raman emission. Recent experiments have shown when moving the excitation from the visible to the near-infrared that this rule of thumb is no more valid. The excitation has to be red-shifted with respect to the LSPR peak, up to 80nm, to obtain highest SERS. Such discrepancy is usually attributed to a Near-Field (NF) to Far-Field (FF) spectral shift. Here we critically discuss this hypothesis for the case of gold nanocylinders. By combining multi-wavelength excitation SERS experiments with numerical calculations, we show that the red-shift of the excitation energy does not originate from a spectral shift between the extinction (FF) and the near-field distribution (NF), which is found to be not larger than 10nm. Rather, it can be accounted for by looking at the peculiar spectral dependence of the near-field intensity on the cylinders diameter, characterized by an initial increase, up to 180nm diameter, followed by a decrease and a pronounced skewness.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Red-Shift Effects in Surface Enhanced Raman Spectroscopy: Spectral or Intensity Dependence of the Near-Field? 2016 The Journal of Physical Chemistry C
Publisher:
American Chemical Society (ACS)
Journal:
The Journal of Physical Chemistry C
Issue Date:
6-Jun-2016
DOI:
10.1021/acs.jpcc.6b01492
Type:
Article
ISSN:
1932-7447; 1932-7455
Sponsors:
Authors want to acknowledge the European project Nanoantenna (HEALTH-F5-2009-241818), and the French Research Agency projects PIRANEX (ANR-12-NANO-0016) and REMANTAS (ANR-11-ECOT-0010) project for the financial support. PGG acknowledges University Paris XIII and the MIUR under Project PRIN 2008J858Y7 financial support.
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b01492
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorColas, Florenten
dc.contributor.authorCottat, Maximilienen
dc.contributor.authorGillibert, Raymonden
dc.contributor.authorGuillot, Nicolasen
dc.contributor.authorDjaker, Nadiaen
dc.contributor.authorLidgi-Guigui, Nathalieen
dc.contributor.authorToury, Timothéeen
dc.contributor.authorBarchiesi, Dominiqueen
dc.contributor.authorToma, Andreaen
dc.contributor.authorDi Fabrizio, Enzo M.en
dc.contributor.authorGucciardi, Pietro Giuseppeen
dc.contributor.authorde la Chapelle, Marc Lamyen
dc.date.accessioned2016-06-14T09:08:32Z-
dc.date.available2016-06-14T09:08:32Z-
dc.date.issued2016-06-06-
dc.identifier.citationRed-Shift Effects in Surface Enhanced Raman Spectroscopy: Spectral or Intensity Dependence of the Near-Field? 2016 The Journal of Physical Chemistry Cen
dc.identifier.issn1932-7447-
dc.identifier.issn1932-7455-
dc.identifier.doi10.1021/acs.jpcc.6b01492-
dc.identifier.urihttp://hdl.handle.net/10754/613011-
dc.description.abstractOptimum amplification in Surface Enhanced Raman Scattering (SERS) from individual nanoantennas is expected when the excitation is slightly blue-shifted with respect to the Localized Surface Plasmon Resonance (LSPR), so that the LSPR peak falls in the middle between the laser and the Stokes Raman emission. Recent experiments have shown when moving the excitation from the visible to the near-infrared that this rule of thumb is no more valid. The excitation has to be red-shifted with respect to the LSPR peak, up to 80nm, to obtain highest SERS. Such discrepancy is usually attributed to a Near-Field (NF) to Far-Field (FF) spectral shift. Here we critically discuss this hypothesis for the case of gold nanocylinders. By combining multi-wavelength excitation SERS experiments with numerical calculations, we show that the red-shift of the excitation energy does not originate from a spectral shift between the extinction (FF) and the near-field distribution (NF), which is found to be not larger than 10nm. Rather, it can be accounted for by looking at the peculiar spectral dependence of the near-field intensity on the cylinders diameter, characterized by an initial increase, up to 180nm diameter, followed by a decrease and a pronounced skewness.en
dc.description.sponsorshipAuthors want to acknowledge the European project Nanoantenna (HEALTH-F5-2009-241818), and the French Research Agency projects PIRANEX (ANR-12-NANO-0016) and REMANTAS (ANR-11-ECOT-0010) project for the financial support. PGG acknowledges University Paris XIII and the MIUR under Project PRIN 2008J858Y7 financial support.en
dc.language.isoenen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b01492en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b01492.en
dc.titleRed-Shift Effects in Surface Enhanced Raman Spectroscopy: Spectral or Intensity Dependence of the Near-Field?en
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalThe Journal of Physical Chemistry Cen
dc.eprint.versionPost-printen
dc.contributor.institutionIFREMER, Detection, Sensors and Measurements Laboratory, Technology Research and Development Department, F-29280 Plouzané, Franceen
dc.contributor.institutionUniversité Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS, (UMR 7244), 74 rue Marcel Cachin, F-93017 Bobigny, Franceen
dc.contributor.institutionICD-LNIO, UMR STMR CNRS 6279, Université de technologie de Troyes, 12 rue Marie Curie, F-10000 Troyes, Franceen
dc.contributor.institutionProject Group for Automatic Mesh Generation and Advanced Methods, Gamma3 project (UTT-INRIA), Université de technologies de Troyes, 12 Rue Marie Curie, F-10000 Troyes, Franceen
dc.contributor.institutionIstituto Italiano di Tecnologia. Via Morego, 30 16163 Genova, Italyen
dc.contributor.institutionUniversity of Magna Graecia, BIONEM lab, Campus Salvatore Venuta, Viale Europa 88100 Germaneto-Catanzaro, Italyen
dc.contributor.institutionCNR IPCF Istituto per i Processi Chimico-Fisici, Viale F. Stagno D’Alcontres 37, I-98156, Messina, Italyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorDi Fabrizio, Enzo M.en
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