Study of color centers produced in thulium doped YLF crystals irradiated by electron beam and femtosecond laser pulses

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dc.contributor.authorCourrol, Lilia C.
dc.contributor.authorRanieri, Izilda M.
dc.contributor.authorBaldochi, Sonia Licia
dc.contributor.authorSamad, Ricardo E.
dc.contributor.authorFreitas, Anderson Z. de
dc.contributor.authorGomes, Laercio
dc.contributor.authorVieira, Nilson D.
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionIPEN
dc.date.accessioned2016-01-24T12:41:53Z
dc.date.available2016-01-24T12:41:53Z
dc.date.issued2007-02-15
dc.description.abstractIn this work, we report the influence of the presence of photochromic and color centers in the photobleaching of thulium ions blue emission in YLF (YLiF4) crystals doped with 1 mol% Tm (3+). the samples were irradiated at room temperature both with electron beam and high intensity ultrashort pulses from a Ti:Sapphire CPA laser system. in both irradiations the production of photochromic and color centers was observed via the absorption bands in the UV and visible ranges. Pure LiF and pure and oxygen doped YLF crystals were used to identify the color centers produced and their optical properties. From a phenomenological model it was possible to study the interaction between color centers and thulium ions, and their effect in photobleaching and photodarkening behaviors. Finally, the blue up laser level population was computed using a rate equation analysis. (c) 2006 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Ciencias Quim Fis & Matemat, UNIFESP, Diadema, SP, Brazil
dc.description.affiliationIPEN, CNEN, Ctr Lasers & Aplicacoes, São Paulo, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Ciencias Quim Fis & Matemat, UNIFESP, Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.format.extent340-346
dc.identifierhttp://dx.doi.org/10.1016/j.optcom.2006.09.071
dc.identifier.citationOptics Communications. Amsterdam: Elsevier B.V., v. 270, n. 2, p. 340-346, 2007.
dc.identifier.doi10.1016/j.optcom.2006.09.071
dc.identifier.issn0030-4018
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/29511
dc.identifier.wosWOS:000244157700038
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofOptics Communications
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.subjectlaseren
dc.subjectcrystalen
dc.subjectthuliumen
dc.subjectfluorescenceen
dc.subjectup-conversionen
dc.subjectenergy transferen
dc.subjectcolor centersen
dc.subjectwaveguideen
dc.titleStudy of color centers produced in thulium doped YLF crystals irradiated by electron beam and femtosecond laser pulsesen
dc.typeinfo:eu-repo/semantics/article
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