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Transparent Er3+-activated lead fluorogermanate glass ceramics

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dc.contributor.authorRolli, Raffaella
dc.contributor.authorBueno, Luciano A. [UNESP]
dc.contributor.authorRibeiro, Sidney J.L. [UNESP]
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorBettinelli, Marco
dc.contributor.authorSpeghini, Adolfo
dc.contributor.authorFerrari, Maurizio
dc.contributor.authorArmellini, Cristina
dc.contributor.authorMontagna, Maurizio
dc.contributor.authorRighini, Giancarlo C.
dc.contributor.authorPelli, Stefano
dc.contributor.institutionUniversità di Trento
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversità di Verona
dc.contributor.institutionIst. di Fotonica e Nanotecnologie
dc.contributor.institutionIst. di Fis. Applicata Nello Carrara
dc.date.accessioned2014-05-27T11:20:57Z
dc.date.available2014-05-27T11:20:57Z
dc.date.issued2003-12-01
dc.description.abstractTransparent glass ceramics containing β-PbF2:Er 3+ nanocrystals were obtained through appropriate thermal treatments of a glass of molar composition 60PbGeO3-10PbF2-30CdF 2 doped with 0.5 mol% Er3+. Their optical properties, as well as upconversion processes among erbium ions in the glass and glass ceramic matrix were studied. From absorption spectra, Judd-Ofelt parameters and radiative transition rates for several excited levels were calculated. Emission spectra in the visible and NIR regions were collected, and stimulated emission cross sections were obtained by McCumber theory for the 4F 13/2→4I15/2 transition at 1.5 μm. Red and green upconversion emissions were measured in glass and glass ceramics upon excitation at 980 nm; lifetimes were measured in order to assess the upconversion mechanisms.en
dc.description.affiliationDipartimento di Fisica INFM Università di Trento, via Sommarive 14, 38050 Povo-Trento
dc.description.affiliationInstituto de Química UNESP, CP 355, 14801-970, Araraquara, SP
dc.description.affiliationDipto. Scientifico e Tecnologico Università di Verona, Strada Le Grazie 15, 37134 Verona
dc.description.affiliationCNR Ist. di Fotonica e Nanotecnologie, via Sommarive 14, 38050, Povo-Trento
dc.description.affiliationIst. di Fis. Applicata Nello Carrara, Via Panciatichi 64, 50127 Firenze
dc.description.affiliationUnespInstituto de Química UNESP, CP 355, 14801-970, Araraquara, SP
dc.format.extent133-134
dc.identifierhttp://dx.doi.org/10.1117/12.525851
dc.identifier.citationProceedings of SPIE - The International Society for Optical Engineering, v. 4829 I, p. 133-134.
dc.identifier.doi10.1117/12.525851
dc.identifier.issn0277-786X
dc.identifier.lattes2998503841917815
dc.identifier.scopus2-s2.0-2342565051
dc.identifier.urihttp://hdl.handle.net/11449/67504
dc.language.isoeng
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectEmission cross section
dc.subjectFluorogermanate Erbium
dc.subjectGlass ceramics
dc.subjectOptical materials
dc.subjectPhotonics
dc.subjectUpconversion
dc.subjectAmplification
dc.subjectCeramic materials
dc.subjectErbium
dc.subjectHeat treatment
dc.subjectLattice vibrations
dc.subjectMelting
dc.subjectNanostructured materials
dc.subjectOptical glass
dc.subjectRelaxation processes
dc.subjectStimulated emission
dc.subjectX ray diffraction analysis
dc.subjectFluorogermanate erbium
dc.subjectMolar composition
dc.subjectRadiative transition rates
dc.titleTransparent Er3+-activated lead fluorogermanate glass ceramicsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://proceedings.spiedigitallibrary.org/ss/TermsOfUse.aspx
dspace.entity.typePublication
unesp.author.lattes2998503841917815
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Inorgânica - IQARpt

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Araraquara - IQAR - Instituto de Química