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Increased rise time of electron temperature during adiabatic plasmon focusing

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorLOZAN, Olga
hal.structure.identifierDepartment of Materials Science and Engineering [RPI-Troy]
dc.contributor.authorSUNDARARAMAN, Ravishankar
hal.structure.identifierLaboratoire Charles Fabry / Services Généraux Techniques
dc.contributor.authorEA-KIM, Buntha
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorRAMPNOUX, Jean-Michel
hal.structure.identifierFaculty of Arts and Sciences [Cambridge]
dc.contributor.authorNARANG, Prineha
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorDILHAIRE, Stefan
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorLALANNE, Philippe
dc.date.accessioned2023-05-12T10:51:40Z
dc.date.available2023-05-12T10:51:40Z
dc.date.created2016-12-09
dc.date.issued2017
dc.identifier.issn2041-1723
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181844
dc.description.abstractEnDecay of plasmons to hot carriers has recently attracted considerable interest for fundamental studies and applications in quantum plasmonics. Although plasmon-assisted hot carriers in metals have already enabled remarkable physical and chemical phenomena, much remains to be understood to engineer devices. Here, we present an analysis of the spatio-temporal dynamics of hot electrons in an emblematic plasmonic device, the adiabatic nanofocusing surface-plasmon taper. With femtosecond-resolution measurements, we confirm the extraordinary capability of plasmonic tapers to generate hot carriers by slowing down plasmons at the taper apex. The measurements also evidence a substantial increase of the " lifetime " of the electron gas temperature at the apex. This interesting effect is interpreted as resulting from an intricate heat flow at the apex. The ability to harness the " lifetime " of hot-carrier gases with nanoscale circuits may provide a multitude of applications, such as hot-spot management, nonequilibrium hot-carrier generation, sensing, and photovoltaics.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherNature Publishing Group
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enIncreased rise time of electron temperature during adiabatic plasmon focusing
dc.typeArticle de revue
dc.identifier.doi10.1038/s41467-017-01802-y
dc.subject.halSciences de l'ingénieur [physics]/Optique / photonique
bordeaux.journalNature Communications
bordeaux.page1656
bordeaux.volume8
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue1
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01662427
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01662427v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Communications&rft.date=2017&rft.volume=8&rft.issue=1&rft.spage=1656&rft.epage=1656&rft.eissn=2041-1723&rft.issn=2041-1723&rft.au=LOZAN,%20Olga&SUNDARARAMAN,%20Ravishankar&EA-KIM,%20Buntha&RAMPNOUX,%20Jean-Michel&NARANG,%20Prineha&rft.genre=article


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