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Thermo-optical properties measurements in chalcogenide glasses using thermal relaxation and thermal lens methods

Lima, S.M., Steimacher, A., Medina, A.N., Baesso, M.L., Petrovich, M.N., Rutt, H.N. and Hewak, D.W. (2004) Thermo-optical properties measurements in chalcogenide glasses using thermal relaxation and thermal lens methods Journal of Non-Crystalline Solids, 348, pp. 108-112. (doi:10.1016/j.jnoncrysol.2004.08.134).

Record type: Article


In this work we determine the thermo-optical properties of two chalcogenide glasses (in mol%): 65 Ga2S3; 30 La2S3; 5 La2O3 (Ga:La:S) and 72.5 Ga2S3; 27.5 La2O3 (Ga:La:S:O). The thermal relaxation calorimetry and the thermal lens technique were combined so that the samples specific heat, thermal diffusivity, thermal conductivity, and the temperature coe.cient of the optical path length change could be measured. Our results indicate that changes in thermal diffusivity (~2.7 · 10^-3 cm^2/s) and conductivity (~4.8 x 10^-3W/Kcm) observed when La2O3 is added in the glass compounds are less than the error in the data.

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Published date: 15 November 2004
Additional Information: Proceedings of the 6th Brazilian Symposium of Glases and Related Materials and 2nd International Symposium on Non-Crystalline Solids in Brazil.


Local EPrints ID: 15023
ISSN: 0022-3093
PURE UUID: c67a2e03-171b-4471-b395-bd435673ec0e
ORCID for D.W. Hewak: ORCID iD

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Date deposited: 10 May 2005
Last modified: 17 Jul 2017 16:52

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Author: S.M. Lima
Author: A. Steimacher
Author: A.N. Medina
Author: M.L. Baesso
Author: M.N. Petrovich
Author: H.N. Rutt
Author: D.W. Hewak ORCID iD

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