Blue cooperative luminescence in Yb3+-doped tellurite glasses excited at 1.064 mu m

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dc.contributor.authordos Santos, P. V.
dc.contributor.authorVermelho, MVD
dc.contributor.authorGouveia, E. A.
dc.contributor.authorde Araujo, M. T.
dc.contributor.authorGouveia-Neto, A. S.
dc.contributor.authorCassanjes, F. C.
dc.contributor.authorRibeiro, SJL
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.institutionUniversidade Federal de Alagoas (UFAL)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:19:58Z
dc.date.available2014-05-20T15:19:58Z
dc.date.issued2002-04-15
dc.description.abstractBlue luminescence emission around 480 nm through cooperative upconversion from pairs of Yb3+ ions implanted into 60TeO(2)-10GeO(2)-10K(2)O-10Li(2)O-10Nb(2)O(5) tellurite glasses and excited by a cw laser at 1.064 mum is demonstrated. Cooperative luminescence emission enhancement owing to the temperature dependent multiphonon-assisted anti-Stokes excitation process of the ytterbium ions is also observed. The experimental results revealed a fourfold enhancement in the cooperative luminescence emission when the sample was heated in the temperature range of 20 degreesC-260 degreesC. The thermally induced enhancement is assigned to the effective absorption cross-section for the ytterbium ions which is an increasing function of the medium temperature. (C) 2002 American Institute of Physics.en
dc.description.affiliationUniv Fed Alagoas, Dept Fis, BR-57072970 Maceio, AL, Brazil
dc.description.affiliationUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.format.extent6772-6776
dc.identifierhttp://dx.doi.org/10.1063/1.1463397
dc.identifier.citationJournal of Chemical Physics. Melville: Amer Inst Physics, v. 116, n. 15, p. 6772-6776, 2002.
dc.identifier.doi10.1063/1.1463397
dc.identifier.fileWOS000174767200045.pdf
dc.identifier.issn0021-9606
dc.identifier.lattes6446047463034654
dc.identifier.lattes2998503841917815
dc.identifier.urihttp://hdl.handle.net/11449/31340
dc.identifier.wosWOS:000174767200045
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofJournal of Chemical Physics
dc.relation.ispartofjcr2.843
dc.relation.ispartofsjr1,252
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleBlue cooperative luminescence in Yb3+-doped tellurite glasses excited at 1.064 mu men
dc.typeArtigo
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
dcterms.rightsHolderAmer Inst Physics
unesp.author.lattes6446047463034654
unesp.author.lattes2998503841917815
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Química Inorgânica - IQ