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H. T. Sun, C. L. Yu and Z. C. Duan, “Optical Transitions of Er3+ and Yb3+ Ions in Novel Oxyfluoride Bismuth-Germanium Glass: Observation of Up-Conversion,” Optical Materials, Vol. 28, No. 4, 2006, pp. 448-452. doi:10.1016/j.optmat.2005.04.005

has been cited by the following article:

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

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

  KEYWORDS: Upconversion Fluorescence; Glasses; Laser

  JOURNAL NAME: New Journal of Glass and Ceramics, Vol.1 No.2, July 21, 2011

  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.