Energy transfer between Tm3+ and Er3+ ions in a TeO2-based glass pumped at diode laser wavelength
dc.contributor.author | de Souza, A. B. | |
dc.contributor.author | Araujo, M. | |
dc.contributor.author | Vermelho, M. V. D. | |
dc.contributor.author | Cassanjes, F. C. | |
dc.contributor.author | Ribeiro, S. J. L. | |
dc.contributor.author | Massaddeq, Y. | |
dc.contributor.institution | Universidade Federal de Alagoas (UFAL) | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T15:23:14Z | |
dc.date.available | 2014-05-20T15:23:14Z | |
dc.date.issued | 2007-01-01 | |
dc.description.abstract | In 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.affiliation | Univ Fed Alagoas, Dept Fis, BR-57072970 Maceio, AL, Brazil | |
dc.description.affiliation | UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil | |
dc.description.affiliationUnesp | UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil | |
dc.format.extent | 94-101 | |
dc.identifier | http://dx.doi.org/10.1016/j.jnoncrysol.2006.08.048 | |
dc.identifier.citation | Journal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 353, n. 1, p. 94-101, 2007. | |
dc.identifier.doi | 10.1016/j.jnoncrysol.2006.08.048 | |
dc.identifier.issn | 0022-3093 | |
dc.identifier.uri | http://hdl.handle.net/11449/34060 | |
dc.identifier.wos | WOS:000243613700012 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Journal of Non-Crystalline Solids | |
dc.relation.ispartofjcr | 2.488 | |
dc.relation.ispartofsjr | 0,722 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | optical spectroscopy | pt |
dc.subject | luminescence | pt |
dc.subject | upconversion | pt |
dc.subject | tellurites | pt |
dc.subject | rare-earths in glasses | pt |
dc.title | Energy transfer between Tm3+ and Er3+ ions in a TeO2-based glass pumped at diode laser wavelength | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Elsevier B.V. | |
unesp.author.orcid | 0000-0003-3286-9440[5] |
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