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

Temperature and wavelength dependence of the thermo-optical properties of tellurite and chalcogenide glasses
Temperature and wavelength dependence of the thermo-optical properties of tellurite and chalcogenide glasses
The refractive index and the temperature coefficient of the optical path length change of tellurite (80TeO) were determined as a function of temperature (up to 150 °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.
0021-8979
073507-[6pp]
Silva, K.C.
0c8fe2c5-9318-48c0-8e7c-55911d229d57
Sakai, O.A.
5613639d-4c95-48d5-a513-9669cef0737b
Steimacher, A.
02a903c5-331d-44e9-a39b-7ae309bfd588
Pedrochi, F.
94872064-efb5-482f-9428-694cea0fa375
Baesso, M.L.
7ae321a0-7cba-4fc4-982d-409b5f6660a9
Bento, A.C.
047cff12-23a2-46d2-b2a9-7d5f9a1a2d14
Medina, A.N.
48b023fe-45b3-4260-b712-d285fbfe0f73
Lima, S.M.
812be72f-4727-4840-a24e-9290494b2312
Oliveira, R.C.
47788e96-0d13-466c-b736-63d2089ebb96
Moraes, J.C.S.
d58f2ae8-5ce9-4b68-b0ad-0766830cf603
Yukimitu, K.
bbce480d-2ab4-42bc-99fa-f1f6a07e043f
Araújo, E.B.
da8570b4-1790-4905-b89e-29528035a116
Silva, K.C.
0c8fe2c5-9318-48c0-8e7c-55911d229d57
Sakai, O.A.
5613639d-4c95-48d5-a513-9669cef0737b
Steimacher, A.
02a903c5-331d-44e9-a39b-7ae309bfd588
Pedrochi, F.
94872064-efb5-482f-9428-694cea0fa375
Baesso, M.L.
7ae321a0-7cba-4fc4-982d-409b5f6660a9
Bento, A.C.
047cff12-23a2-46d2-b2a9-7d5f9a1a2d14
Medina, A.N.
48b023fe-45b3-4260-b712-d285fbfe0f73
Lima, S.M.
812be72f-4727-4840-a24e-9290494b2312
Oliveira, R.C.
47788e96-0d13-466c-b736-63d2089ebb96
Moraes, J.C.S.
d58f2ae8-5ce9-4b68-b0ad-0766830cf603
Yukimitu, K.
bbce480d-2ab4-42bc-99fa-f1f6a07e043f
Araújo, E.B.
da8570b4-1790-4905-b89e-29528035a116

Silva, K.C., Sakai, O.A., Steimacher, A., Pedrochi, F., Baesso, M.L., Bento, A.C., Medina, A.N., Lima, S.M., Oliveira, R.C., Moraes, J.C.S., Yukimitu, K. and Araújo, E.B. (2007) Temperature and wavelength dependence of the thermo-optical properties of tellurite and chalcogenide glasses. Journal of Applied Physics, 102 (7), 073507-[6pp]. (doi:10.1063/1.2786033).

Record type: Article

Abstract

The refractive index and the temperature coefficient of the optical path length change of tellurite (80TeO) were determined as a function of temperature (up to 150 °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.

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Published date: 3 October 2007

Identifiers

Local EPrints ID: 49785
URI: http://eprints.soton.ac.uk/id/eprint/49785
ISSN: 0021-8979
PURE UUID: 620b745d-9a0f-4a36-8b87-c27f35f5e941

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Date deposited: 03 Dec 2007
Last modified: 08 Jan 2022 01:10

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Contributors

Author: K.C. Silva
Author: O.A. Sakai
Author: A. Steimacher
Author: F. Pedrochi
Author: M.L. Baesso
Author: A.C. Bento
Author: A.N. Medina
Author: S.M. Lima
Author: R.C. Oliveira
Author: J.C.S. Moraes
Author: K. Yukimitu
Author: E.B. Araújo

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