Upconversion luminescence in Er3+ doped Ga10Ge 25S65 glass and glass-ceramic excited in the near-infrared

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dc.contributor.authorLozano B., Whualkuer
dc.contributor.authorDe Araújo, Cid B.
dc.contributor.authorLedemi, Yannick [UNESP]
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.contributor.institutionUniversité Laval
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidad Nacional Mayor de San Marcos-UNMSM
dc.date.accessioned2014-05-27T11:28:33Z
dc.date.available2014-05-27T11:28:33Z
dc.date.issued2013-02-28
dc.description.abstractThe infrared-to-visible frequency upconversion was investigated in Er 3+-doped Ga10Ge25S65 glass and in the transparent glass-ceramic obtained by heat-treatment of the glass above its glass-transition temperature. Continuous-wave and pulsed lasers operating at 980 nm and 1480 nm were used as excitation sources. The green (2H 11/2 → 4I15/2; 4S3/2 → 4I15/2) and red (4F9/2 → 4I15/2) photoluminescence (PL) signals due to the Er3+ ions were characterized. The PL decay times were influenced by energy transfer among Er3+ ions, by cross-relaxation processes and by energy transfer from the Er3+ ions to the host material. The PL from the Er3+ ions hosted in the crystalline phase was distinguished only when the glass-ceramic was excited by the 1480 nm pulsed laser. The excitation pathways responsible for the green and red PL bands are discussed to explain the differences between the spectra observed under continuous-wave and pulsed excitation. © 2013 American Institute of Physics.en
dc.description.affiliationDepartamento de Física Universidade Federal de Pernambuco, Recife-PE 50670-901
dc.description.affiliationCentre d'Optique, Photonique et Laser Université Laval, Québec, QC G1V 0A6
dc.description.affiliationInstituto de Química Universidade Estadual Paulista-UNESP, 14801-970 Araraquara, São Paulo
dc.description.affiliationFacultad de Ciencias Físicas Universidad Nacional Mayor de San Marcos-UNMSM, Lima
dc.description.affiliationUnespInstituto de Química Universidade Estadual Paulista-UNESP, 14801-970 Araraquara, São Paulo
dc.identifierhttp://dx.doi.org/10.1063/1.4793638
dc.identifier.citationJournal of Applied Physics, v. 113, n. 8, 2013.
dc.identifier.doi10.1063/1.4793638
dc.identifier.file2-s2.0-84874899336.pdf
dc.identifier.issn0021-8979
dc.identifier.lattes2998503841917815
dc.identifier.scopus2-s2.0-84874899336
dc.identifier.urihttp://hdl.handle.net/11449/74636
dc.identifier.wosWOS:000315667500031
dc.language.isoeng
dc.relation.ispartofJournal of Applied Physics
dc.relation.ispartofjcr2.176
dc.relation.ispartofsjr0,739
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCross-relaxation process
dc.subjectCrystalline phase
dc.subjectExcitation pathways
dc.subjectExcitation sources
dc.subjectFrequency up-conversion
dc.subjectInfrared-to-visible
dc.subjectPhotoluminescence signals
dc.subjectUp-conversion luminescence
dc.subjectEnergy transfer
dc.subjectErbium
dc.subjectGermanium
dc.subjectIons
dc.subjectPulsed lasers
dc.subjectSecondary batteries
dc.subjectGlass
dc.titleUpconversion luminescence in Er3+ doped Ga10Ge 25S65 glass and glass-ceramic excited in the near-infrareden
dc.typeArtigo
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
unesp.author.lattes2998503841917815
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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