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CHALCOGENIDE GLASSES FOR OPTICAL AND PHOTONICS APPLICATIONS

D. Lezal1,* , J. Pedlikova1, J. Zavadil2

Affiliation

  1. Laboratory of Inorganic Materials, Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 250 68 Rez, Czech Republic
  2. Institute of Radio Engineering and Electronics, Academy of Sciences of the Czech Republic, Chaberská 57, 182 51 Praha 8 – Kobylisy, Czech Republic

Abstract

A short review of relevant parameters, such as phonon energy, transmission range and refraction index, that distinguish previously and presently studied chalcogenide glasses from silica based ones is given. Chalcogenide glass systems GeSe, GeSeTe and As2Se3 have been prepared and characterized by absorption spectroscopy and low-temperature photoluminescence. Both absorption and low-temperature photoluminescence spectra reveal shifts of absorption edge and/or luminescence band to longer wavelength due to Te fi Se substitution. Luminescence band shows little change with increasing temperature up to 200 K and considerable shift to shorter wavelength appears when room temperature is approached. No influence of Te fi Se substitution on the position or spectral shape of luminescence band is observed at room temperature..

Keywords

Chalcogenide glass, High purity glass, Photoluminescence.

Submitted at: Aug. 27, 2003
Accepted at: March 15, 2004

Citation

D. Lezal, J. Pedlikova, J. Zavadil, CHALCOGENIDE GLASSES FOR OPTICAL AND PHOTONICS APPLICATIONS, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 1, pp. 133-137 (2004)