Thermal-optical properties of Ga : La : S glasses measured by thermal lens technique

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dc.contributor.authorLima, S. M.
dc.contributor.authorCatunda, T.
dc.contributor.authorBaesso, M. L.
dc.contributor.authorVila, L. D.
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorStucchi, Elizabeth Berwerth [UNESP]
dc.contributor.authorRibeiro, SJL
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.date.accessioned2014-05-20T15:23:33Z
dc.date.available2014-05-20T15:23:33Z
dc.date.issued1999-05-01
dc.description.abstractIn this work the quantitative theoretical treatment for two beam mode mismatched thermal lens spectrometry is applied to investigate the thermo-optical properties of chalcohalide (chalcolgenides and halides mixture) glasses. For the three kinds of glass studied the thermal diffusivity varied between 2.5 and 2.7 x 10(-3) cm(2) s(-1). Using these results and supposing Dulong-Petit specific heats we estimated the thermal conductivity and temperature ratio of optical path length (ds/dT) and temperature coefficient of refractive index (dn/dT). All samples had positive ds/dT(similar to 3.3 x 10(-6) K-1) and negative dn/dT (similar to -26 x 10(-6) K-1). The difference between these parameters and the change of signal are consequences of the expansion coefficient (13 x 10(-6) K-1) and refractive index (n similar to 2.6) of chalcohalides. (C) 1999 Elsevier B.V. B.V. All rights reserved.en
dc.description.affiliationUNESP, Inst Quim Araraquara, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUniv Nacl Estadual São Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Maringa, Dept Fis, BR-87020900 Maringa, Parana, Brazil
dc.description.affiliationUnespUNESP, Inst Quim Araraquara, BR-14801970 Araraquara, SP, Brazil
dc.format.extent222-226
dc.identifierhttp://dx.doi.org/10.1016/S0022-3093(99)00066-6
dc.identifier.citationJournal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 247, p. 222-226, 1999.
dc.identifier.doi10.1016/S0022-3093(99)00066-6
dc.identifier.issn0022-3093
dc.identifier.lattes2998503841917815
dc.identifier.lattes9430703714241591
dc.identifier.lattes6446047463034654
dc.identifier.urihttp://hdl.handle.net/11449/34316
dc.identifier.wosWOS:000080506900039
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Non-Crystalline Solids
dc.relation.ispartofjcr2.488
dc.relation.ispartofsjr0,722
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleThermal-optical properties of Ga : La : S glasses measured by thermal lens techniqueen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes2998503841917815
unesp.author.lattes9430703714241591
unesp.author.lattes6446047463034654
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Química Inorgânica - IQ