Optical properties and energy-transfer frequency upconversion of Yb 3+-sensitized Ho3+- And Tb3+-doped lead-cadmium-germanate glass and glass ceramic

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dc.contributor.authorGouveia-Neto, Artur S.
dc.contributor.authorAfonso, Antônio C. M.
dc.contributor.authorNascimento, Jehan F.
dc.contributor.authorCosta, Ernande B.
dc.contributor.authorBueno, Luciano A.
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorRibeiro, Sidney José Lima [UNESP]
dc.contributor.institutionUniversidade Federal Rural de Pernambuco (UFRPE)
dc.contributor.institutionACET
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:52Z
dc.date.available2014-05-27T11:21:52Z
dc.date.issued2006-05-09
dc.description.abstractIn this report we investigate the optical properties and energy-transfer upconversion luminescence of Ho3+- and Tb3+/Yb 3+-codoped PbGeO3-PbF2-CdF2 glass-ceramic under infrared excitation. In Ho3+/Yb 3+-codoped sample, green(545 nm), red(652 nm), and near-infrared(754 nm) upconversion luminescence corresponding to the 4S 2(5F4) → 5I8, 5F5 → 5I8, and 4S2(5F4) → 5I 7, respectively, was readly observed. Blue(490 nm) signals assigned to the 5F2,3 → 5I8 transition was also detected. In the Tb3+/Yb3+ system, bright UV-visible emission around 384, 415, 438, 473-490, 545, 587, and 623 nm, identified as due to the 5D3(5G6) → 7FJ(J=6,5,4) and 5D4→ 7FJ(J=6,5,4,3) transitions, was measured. The comparison of the upconversion process in glass ceramic and its glassy precursor revealed that the former samples present much higher upconversion efficiencies. The dependence of the upconversion emission upon pump power, and doping contents was also examined. The results indicate that successive energy-transfer between ytterbium and holmium ions and cooperative energy-transfer between ytterbium and terbium ions followed by excited-state absorption are the dominant upconversion excitation mechanisms herein involved. The viability of using the samples for three-dimensional solid-state color displays is also discussed.en
dc.description.affiliationLaboratório de Fotônica DFM/UFRPE, Recife, PE, 52171/900
dc.description.affiliationUNOESC ACET, Videira - SC - 89560/000
dc.description.affiliationInstituto de Química UNESP, Araraquara, 14800/900, SP
dc.description.affiliationUnespInstituto de Química UNESP, Araraquara, 14800/900, SP
dc.identifierhttp://dx.doi.org/10.1117/12.639820
dc.identifier.citationProceedings of SPIE - The International Society for Optical Engineering, v. 6116.
dc.identifier.doi10.1117/12.639820
dc.identifier.issn0277-786X
dc.identifier.lattes2998503841917815
dc.identifier.lattes6446047463034654
dc.identifier.orcid0000-0003-3286-9440
dc.identifier.scopus2-s2.0-33646268789
dc.identifier.urihttp://hdl.handle.net/11449/68882
dc.language.isoeng
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectGlass
dc.subjectGlass-ceramics
dc.subjectLuminescence
dc.subjectOptical properties
dc.subjectRare-earth
dc.subjectUpconversion
dc.subjectEnergy transfer
dc.subjectGlass ceramics
dc.subjectHolmium
dc.subjectLead alloys
dc.subjectSemiconductor doping
dc.subjectPump power
dc.subjectSolid-state color displays
dc.subjectYtterbium
dc.titleOptical properties and energy-transfer frequency upconversion of Yb 3+-sensitized Ho3+- And Tb3+-doped lead-cadmium-germanate glass and glass ceramicen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://proceedings.spiedigitallibrary.org/ss/TermsOfUse.aspx
unesp.author.lattes2998503841917815
unesp.author.lattes6446047463034654
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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