Method for separating spectrally overlapping multiphoton upconverted emission bands through spectral power dependence analysis

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dc.contributor.authorGalindo, Jefferson A.O.
dc.contributor.authorPessoa, Allison R.
dc.contributor.authorSerge-Correales, York E. [UNESP]
dc.contributor.authorRibeiro, Sidney J.L. [UNESP]
dc.contributor.authorde S. Menezes, Leonardo
dc.contributor.authorAmaral, Anderson M.
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionLudwig-Maximilians-Universität München
dc.date.accessioned2023-07-29T16:03:14Z
dc.date.available2023-07-29T16:03:14Z
dc.date.issued2023-05-01
dc.description.abstractThe high quantum efficiency and long lifetimes of upconverting rare-earth-doped systems make luminescence band spectral overlap a particularly common phenomenon, frequently associated with various excitation and relaxation pathways. While it is often considered challenging to experimentally distinguish such overlapping luminescent bands, herein it is proposed a new method based on the different spectral responses of those luminescent lines to the excitation power at a single pumping wavelength laser. A model for the population of the overlapping bands in terms of the pump laser power is considered and fitted for each measured wavelength, resulting in separated spectra for each pathway. The results obtained with the proposed method are considered with direct excitation measurements, showing the effectiveness and simplicity of the method in comparison with more traditional approaches.en
dc.description.affiliationDepartment of Physics Universidade Federal de Pernambuco, Pernambuco
dc.description.affiliationInstitute of Chemistry São Paulo State University, São Paulo
dc.description.affiliationChair in Hybrid Nanosystems Nanoinstitute Munich Faculty of Physics Ludwig-Maximilians-Universität München, Bavaria
dc.description.affiliationUnespInstitute of Chemistry São Paulo State University, São Paulo
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2018/15791-7
dc.identifierhttp://dx.doi.org/10.1016/j.jlumin.2023.119685
dc.identifier.citationJournal of Luminescence, v. 257.
dc.identifier.doi10.1016/j.jlumin.2023.119685
dc.identifier.issn0022-2313
dc.identifier.scopus2-s2.0-85146428750
dc.identifier.urihttp://hdl.handle.net/11449/249564
dc.language.isoeng
dc.relation.ispartofJournal of Luminescence
dc.sourceScopus
dc.subjectLanthanide ions
dc.subjectMultiphoton processes
dc.subjectSpectral overlap
dc.subjectUpconversion
dc.titleMethod for separating spectrally overlapping multiphoton upconverted emission bands through spectral power dependence analysisen
dc.typeArtigo
unesp.author.orcid0000-0001-7820-9160[1]

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