14 December 2005 Photoinduced phenomena in chalcogenide glasses doped with metals
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Proceedings Volume 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II; 59720R (2005) https://doi.org/10.1117/12.639737
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 2004, Bucharest, Romania
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.
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M. S. Iovu, M. S. Iovu, P. Boolchand, P. Boolchand, D. G. Georgiev, D. G. Georgiev, S. M. Iovu, S. M. Iovu, M. Popescu, M. Popescu, } "Photoinduced phenomena in chalcogenide glasses doped with metals", Proc. SPIE 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 59720R (14 December 2005); doi: 10.1117/12.639737; https://doi.org/10.1117/12.639737
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