Intense yellow emission in Dy3+-doped LiGd(MoO4)2 crystal for visible lasers
2011; Elsevier BV; Volume: 34; Issue: 1 Linguagem: Inglês
10.1016/j.optmat.2011.07.006
ISSN1873-1252
AutoresWei‐Wei Zhou, Bo Wei, Zhao Wang, Guofu Wang, Xia Bao, Yonghong Chen, Fengwu Wang, Jianming Du, Hai-jun Yu,
Tópico(s)Glass properties and applications
ResumoThe spectroscopic properties of Dy3+:LiGd(MoO4)2 crystal have been investigated with aim to assess the feasibility of laser operation in the yellow region. On the basis of the analysis of polarized absorption spectra in the framework of the Judd–Ofelt theory, the main spectroscopic characteristics relevant for laser applications have been determined. An intense yellow emission band corresponding to the 4F9/2 → 6H13/2 transition around 575 nm has been observed in the visible region. The emission cross-sections for the 4F9/2 → 6H13/2 transition have been calculated using the Füchtbauer–Ladenburg formula. The fluorescence and radiative lifetimes of the 4F9/2 manifold are equal to 139.0 μs and 199.1 μs, respectively, and the quantum efficiency is 69.8%.
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