Energy transfer between Tm3+ and Er3+ ions in a TeO2-based glass pumped at diode laser wavelength

dc.contributor.authorde Souza, A. B.
dc.contributor.authorAraujo, M.
dc.contributor.authorVermelho, M. V. D.
dc.contributor.authorCassanjes, F. C.
dc.contributor.authorRibeiro, S. J. L.
dc.contributor.authorMassaddeq, Y.
dc.contributor.institutionUniversidade Federal de Alagoas (UFAL)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:23:14Z
dc.date.available2014-05-20T15:23:14Z
dc.date.issued2007-01-01
dc.description.abstractIn this paper we investigate the energy transfer processes in TM3+/Er3+ doped telluride glass pumped at the commercial diode laser pump wavelength similar to 800 nm. Tailoring the rare-earths content in the glass matrix, seven main energy transfer channels within the doping range considered were identified, A 6-fold enhancement of the Er3+ visible frequency upconversion fluorescence at similar to 660 nm is observed due to the inclusion of Tm3+ ions. This is evidence of the relevant contribution of the route Er-1(I-4(11/2)) + Er-2(I-4(13/2)) -> Er-1(I-4(15/2)) + Er-2(F-4(9/2)) to the process. Energy migration among pumped I-4(9/2) level reducing the efficiency of the upconversion emission rate (H-3(11/2), S-4(3/2), and F-4(9/2)) is observed for Er3+ above 1.5 wt%. The rate equations regarding the observed energy transfer routes are determined and a qualitative analysis of the observed processes is reported. (c) 2006 Elsevier B.V. All rights reserved.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.extent94-101
dc.identifierhttp://dx.doi.org/10.1016/j.jnoncrysol.2006.08.048
dc.identifier.citationJournal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 353, n. 1, p. 94-101, 2007.
dc.identifier.doi10.1016/j.jnoncrysol.2006.08.048
dc.identifier.issn0022-3093
dc.identifier.urihttp://hdl.handle.net/11449/34060
dc.identifier.wosWOS:000243613700012
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Non-Crystalline Solids
dc.relation.ispartofjcr2.488
dc.relation.ispartofsjr0,722
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectoptical spectroscopypt
dc.subjectluminescencept
dc.subjectupconversionpt
dc.subjecttelluritespt
dc.subjectrare-earths in glassespt
dc.titleEnergy transfer between Tm3+ and Er3+ ions in a TeO2-based glass pumped at diode laser wavelengthen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0003-3286-9440[5]

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