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

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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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