Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1485671 | Journal of Non-Crystalline Solids | 2007 | 4 Pages |
Abstract
The photoluminescence (PL) of a series of (GeS2)80(Ga2S3)20 glasses doped with different amounts of Er (0.17, 0.35, 0.52, 1.05 and 1.39 at.%) at 77 and 4.2 K has been studied. The influence of the temperature on the emission cross-section of the PL bands at ∼1540, 980 and 820 nm under host excitation has been defined. A quenching effect of the host photoluminescence has been established from the compositional dependence of the PL intensity. It has been found that the present Er3+-doped Ge–S–Ga glasses posses PL lifetime values about 3.25 ms.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Z.G. Ivanova, Z. Aneva, R. Ganesan, D. Tonchev, E.S.R. Gopal, K.S.R.K. Rao, T.W. Allen, R.G. DeCorby, S.O. Kasap,