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Optical properties of Er-doped As-S-Ge chalcogenide glasses

V. B. PETROVIĆ1, D. D. ŠTRBAC2, I. O. GUT1, S. R. LUKIĆ2,*

Affiliation

  1. Department of Physics, Faculty of Sciences, University of Novi Sad, Serbia
  2. Faculty of Technical Sciences, University of Novi Sad, Serbia

Abstract

We have investigated Er-doped (As2S3)30 (GeS2)70 chalcogenide glasses (0.01; 0.1; 0.5 and 1 at.% Er) by X-ray diffraction, photoluminescence, and optical transmittance measurements. The amorphous character of the samples was controled by standard X-ray techniques. Transmission spectra of investigated glasses were recorded in the wavelength interval from 200 to 2500 nm. Absorption edge and optical band gap were determined by extrapolating linear parts of the absorption spectra. It was concluded that this range of Er doping concentrations does not have great influence on the values of these parameters. The photoluminescence results indicate emission peaking at around 1550 nm, for the samples with Er content above 0.5 at%, which makes them interesting for the applications as active chalcogenide glasses..

Keywords

Chalcogenide glasses, Rare-earth, Transmittance, Fluorescence spectra.

Submitted at: July 5, 2009
Accepted at: Dec. 10, 2009

Citation

V. B. PETROVIĆ, D. D. ŠTRBAC, I. O. GUT, S. R. LUKIĆ, Optical properties of Er-doped As-S-Ge chalcogenide glasses, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 12, pp. 2035-2038 (2009)