Temperature and wavelength dependence of the thermo-optical properties of tellurite and chalcogenide glasses

dc.contributor.authorSilva, K. C.
dc.contributor.authorSakai, O. A.
dc.contributor.authorSteimacher, A.
dc.contributor.authorPedrochi, F.
dc.contributor.authorBaesso, M. L.
dc.contributor.authorBento, A. C.
dc.contributor.authorMedina, A. N.
dc.contributor.authorLima, S. M.
dc.contributor.authorOliveira, R. C.
dc.contributor.authorMoraes, João Carlos Silos [UNESP]
dc.contributor.authorYukimitu, K.
dc.contributor.authorAraujo, E. B.
dc.contributor.authorPetrovich, M.
dc.contributor.authorHewak, D. W.
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniv Estadual Mato Grosso Sul
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Southampton
dc.date.accessioned2014-05-20T15:28:49Z
dc.date.available2014-05-20T15:28:49Z
dc.date.issued2007-10-01
dc.description.abstractThe refractive index and the temperature coefficient of the optical path length change of tellurite (80TeO(2):20Li(2)O) and chalcogenide glasses (72.5Ga(2)S(3):27.5La(2)O(3)) were determined as a function of temperature (up to 150 degrees C) and wavelength (in the range between 454 and 632.8 nm). The tellurite glass exhibits the usual refractive index dispersion in the wavelength range analyzed, while anomalous refractive index dispersion was observed for the chalcogenide glass between 454 and 530 nm. The dispersion parameters were determined by means of the single-effective oscillator model. In addition, a strong dependence of the temperature coefficient of the optical path length on the photon energy and temperature was found for the chalcogenide glass. The latter was correlated to the shift of the optical band gap (or electronic edge) with temperature, which was interpreted by the electron-phonon interaction model. (C) 2007 American Institute of Physics.en
dc.description.affiliationUniv Estadual Maringa, Dept Fis, BR-87020900 Maringa, Parana, Brazil
dc.description.affiliationUniv Estadual Mato Grosso Sul, Grp Espectroscopia Opt & Fototerm, Dourados, Mato Grosso De, Brazil
dc.description.affiliationUniv Estadual Paulista, Grp Vidros & Ceram, São Paulo, Brazil
dc.description.affiliationUniv Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
dc.description.affiliationUnespUniv Estadual Paulista, Grp Vidros & Ceram, São Paulo, Brazil
dc.format.extent6
dc.identifierhttp://dx.doi.org/10.1063/1.2786033
dc.identifier.citationJournal of Applied Physics. Melville: Amer Inst Physics, v. 102, n. 7, 6 p., 2007.
dc.identifier.doi10.1063/1.2786033
dc.identifier.fileWOS000250147700027.pdf
dc.identifier.issn0021-8979
dc.identifier.lattes8507741729691974
dc.identifier.lattes6725982228402054
dc.identifier.urihttp://hdl.handle.net/11449/38563
dc.identifier.wosWOS:000250147700027
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relation.ispartofJournal of Applied Physics
dc.relation.ispartofjcr2.176
dc.relation.ispartofsjr0,739
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleTemperature and wavelength dependence of the thermo-optical properties of tellurite and chalcogenide glassesen
dc.typeArtigo
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
dcterms.rightsHolderAmer Inst Physics
unesp.author.lattes8507741729691974
unesp.author.lattes6725982228402054
unesp.author.orcid0000-0001-6017-2582[5]
unesp.author.orcid0000-0002-3905-5901[13]
unesp.author.orcid0000-0001-6051-0940[6]
unesp.author.orcid0000-0002-7043-3157[10]
unesp.author.orcid0000-0002-6347-0160[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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