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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/67504
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dc.contributor.authorRolli, Raffaella-
dc.contributor.authorBueno, Luciano A.-
dc.contributor.authorRibeiro, Sidney J.L.-
dc.contributor.authorMessaddeq, Younes-
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.date.accessioned2014-05-27T11:20:57Z-
dc.date.accessioned2016-10-25T18:19:05Z-
dc.date.available2014-05-27T11:20:57Z-
dc.date.available2016-10-25T18:19:05Z-
dc.date.issued2003-12-01-
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.issn0277-786X-
dc.identifier.urihttp://hdl.handle.net/11449/67504-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/67504-
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.format.extent133-134-
dc.language.isoeng-
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.typeoutro-
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.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.identifier.doi10.1117/12.525851-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering-
dc.identifier.scopus2-s2.0-2342565051-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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