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Frequency upconversion properties of Tm3+ doped TeO2-ZnO glasses containing silver nanoparticles

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dc.contributor.authorde Assumpcao, Thiago A. A.
dc.contributor.authorda Silva, Davinson M.
dc.contributor.authorCamilo, Mauricio E. [UNESP]
dc.contributor.authorKassab, Luciana R. P. [UNESP]
dc.contributor.authorAnderson, S.
dc.contributor.authorde Araujo, Cid B.
dc.contributor.authorWetter, Niklaus U.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.contributor.institutionInstituto de Pesquisas Energéticas e Nucleares (IPEN)
dc.date.accessioned2014-05-20T15:32:09Z
dc.date.available2014-05-20T15:32:09Z
dc.date.issued2012-09-25
dc.description.abstractFrequency upconversion (UC) properties of Tm3+ doped TeO2-ZnO glasses containing silver nanoparticles (NPs) were investigated. Infrared-to-visible and infrared-to-infrared UC processes associated to the Tm3+ ions were studied by exciting the samples with a cw 1050 nm ytterbium laser. The luminescence intensity as a function of laser intensity was also measured using a pulsed 1047 nm Nd3+:YVO laser in order to determine the number of photons participating in the UC processes. Enhancement of the UC signals for samples heat-treated during various time intervals is attributed to the growth of the local field in the vicinity of the NPs. PL enhancement by one-order of magnitude was observed in the whole spectrum of the samples heat-treated during 48 h. on the other hand PL quenching was observed for the samples heat-treated more than 48 h. (c) 2011 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv São Paulo, Escola Politecn, Dept Engn Sistemas Eletron, BR-05508900 São Paulo, Brazil
dc.description.affiliationCEETEPS UNESP, Fac Tecnol São Paulo, Lab Tecnol Mat Foton & Optoeletron, BR-01124060 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de Pernambuco (UFPE), Dept Fis, BR-50670901 Recife, PE, Brazil
dc.description.affiliationInst Pesquisas Energet & Nucl IPEN SP, Ctr Lasers & Aplicacoes, BR-05508000 São Paulo, Brazil
dc.description.affiliationUnespCEETEPS UNESP, Fac Tecnol São Paulo, Lab Tecnol Mat Foton & Optoeletron, BR-01124060 São Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (FACEPE)
dc.format.extentS504-S506
dc.identifierhttp://dx.doi.org/10.1016/j.jallcom.2011.12.078
dc.identifier.citationJournal of Alloys and Compounds. Lausanne: Elsevier B.V. Sa, v. 536, p. S504-S506, 2012.
dc.identifier.doi10.1016/j.jallcom.2011.12.078
dc.identifier.issn0925-8388
dc.identifier.urihttp://hdl.handle.net/11449/41129
dc.identifier.wosWOS:000310837500110
dc.language.isoeng
dc.publisherElsevier B.V. Sa
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.ispartofjcr3.779
dc.relation.ispartofsjr1,020
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectNanostructured materialsen
dc.subjectRare-earth compoundsen
dc.subjectOptical propertiesen
dc.subjectLuminescenceen
dc.subjectLocalized surface plasmonsen
dc.subjectFrequency upconversionen
dc.titleFrequency upconversion properties of Tm3+ doped TeO2-ZnO glasses containing silver nanoparticlesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V. Sa
dspace.entity.typePublication
unesp.author.orcid0000-0002-0315-0253[2]
unesp.author.orcid0000-0002-9379-9530[7]
unesp.author.orcid0000-0002-6795-5712[4]
unesp.author.orcid0000-0001-8597-7512[1]
unesp.author.orcid0000-0003-1205-9467[6]

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