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, 108-112. (doi:10.1016/j.jnoncrysol.2004.08.134).

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Description/Abstract

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.

Item Type: Article
Additional Information: Proceedings of the 6th Brazilian Symposium of Glases and Related Materials and 2nd International Symposium on Non-Crystalline Solids in Brazil.
ISSNs: 0022-3093 (print)
Related URLs:
Subjects: T Technology > TP Chemical technology
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 15023
Date Deposited: 10 May 2005
Last Modified: 27 Mar 2014 18:05
URI: http://eprints.soton.ac.uk/id/eprint/15023

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