Upconversion luminescence of Er³⁺/Yb³⁺ Co-Doped Sb₂O₃-WO₃-Li₂O Antimonate Glasses

Deqiang Wang, Junjie Lu, Zhen Zhang, Yingfei Hu, Zhiling Shen

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DOI: 10.4236/njgc.2011.12006                

Abstract

A series of Er³+/Yb³⁺ co-doped Sb₂O₃-WO₃-Li₂O glasses were prepared. Intense green upconversion fluorescence was observed near 524 and 544nm under excitation at 980 nm. The upconversion process was proved to be a two-photon absorption process. The upconversion fluorescence efficiency was enhanced by increasing introduction concentration of Yb³⁺ ions. The low maximum phonon energy of the glasses indicated that the glasses were good potential for upconversion optical devices.

Keywords

Upconversion Fluorescence; Glasses; Laser

Conflicts of Interest

The authors declare no conflicts of interest.

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