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Proceedings Paper

Photoinduced phenomena in chalcogenide glasses doped with metals
Author(s): M. S. Iovu; P. Boolchand; D. G. Georgiev; S. M. Iovu; M. Popescu
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Paper Abstract

In the present paper we have focus our study on relaxation of photodarkening in α-As2Se3 doped with Sn and rare-earth (RE) ions (Dy3+, Pr3+, Ho3+, Sm3+, Nd3+, Er3+). The relaxation process of photodarkening is described by a stretched exponential function with the dispersion parameter 0<α2Se3 glass was probed by a local probe like 119Sn Moessbauer spectroscopy, and in conjunction with Temperature Differential Scanning Calorimetry (TMDSC) some aspects of the molecular glass structure were elucidate. Recommendation concerning the stabilization of the glass structure by metal impurity against photostructural transformation have been suggested, and which are very important for chalcogenide glasses doped with rare-earth ions as perspective materials for fibre optics amplifiers operating at the 1.3 μm and 1.5 μm telecommunication windows.

Paper Details

Date Published: 14 December 2005
PDF: 8 pages
Proc. SPIE 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 59720R (14 December 2005); doi: 10.1117/12.639737
Show Author Affiliations
M. S. Iovu, Ctr. of Optoelectronics, IAP (Moldova)
P. Boolchand, Univ. of Cincinnati (United States)
D. G. Georgiev, Univ. of Cincinnati (United States)
S. M. Iovu, Ctr. of Optoelectronics, IAP (Moldova)
M. Popescu, National Institute for Physics of Materials (Romania)

Published in SPIE Proceedings Vol. 5972:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II
Ovidiu Iancu; Adrian Manea; Paul Schiopu; Dan Cojoc, Editor(s)

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