Two-photon based pulse autocorrelation with CdSe nanoplatelets

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dc.contributor.authorQuick, Michael T.
dc.contributor.authorOwschimikow, Nina
dc.contributor.authorKhan, Ali Hossain
dc.contributor.authorPolovitsyn, Anatolii
dc.contributor.authorMoreels, Iwan
dc.contributor.authorWoggon, Ulrike
dc.contributor.authorAchtstein, Alexander W.
dc.date.accessioned2019-11-20T12:44:34Z
dc.date.available2019-11-20T12:44:34Z
dc.date.issued2019-09-06
dc.description.abstractWe investigate broadband two-photon absorption autocorrelators based on II–VI semiconductor nanoplatelets as an alternative to common second harmonic generation based techniques. As compared to bulk materials the exceptionally high enhancement of two-photon absorption in these 2D structures results in very efficient two-photon absorption based autocorrelation detected via PL emission. We compare the results with TPA autocorrelation in CdS bulk as well as SHG based autocorrelation in β-barium borate. We show that CdSe nanoplatelet based autocorrelation can exceed the efficiency of conventional methods by two orders in magnitude, especially for short interaction length, and allows a precise pulse-width determination. We demonstrate that very high two-photon absorption cross sections of the nanoplatelets are the basis for this effective TPA autocorrelation. Based on our results with II–VI nanoplatelets efficient broadband autocorrelation with more than ∼100 nm bandwidth and very high sensitivity seems feasible.en
dc.description.sponsorshipEC/H2020/714876/EU/Photonics in Flatland: Band Structure Engineering of 2D Excitons in Fluorescent Colloidal Nanomaterials/PHOCONAen
dc.description.sponsorshipTU Berlin, Open-Access-Mittel - 2019en
dc.identifier.eissn2040-3372
dc.identifier.issn2040-3364
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/10354
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9313
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/en
dc.subject.ddc530 Physikde
dc.subject.otherautocorrelationen
dc.subject.othertwo-photon absorptionen
dc.subject.othersemiconductor nano materialsen
dc.titleTwo-photon based pulse autocorrelation with CdSe nanoplateletsen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/C9NR06156Hen
dcterms.bibliographicCitation.journaltitleNanoscaleen
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryen
dcterms.bibliographicCitation.originalpublisherplaceCambridgeen
dcterms.bibliographicCitation.pageend17300en
dcterms.bibliographicCitation.pagestart17293en
dcterms.bibliographicCitation.volume11en
tub.accessrights.dnbfreeen
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Optik und Atomare Physik::FG Nichtlineare Optikde
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Nichtlineare Optikde
tub.affiliation.instituteInst. Optik und Atomare Physikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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