5 August 1998 Preparation and spectroscopic properties of Er3+-doped fluogermanate glass
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Er2O3 doped fluogermanate glasses have been prepared by the melting method. The optical absorption spectra and fluorescence emission spectra of the glasses were measured. The influence of Er3+ concentrations on the fluorescence emission intensity was discussed. Green upconversion emission was observed for the Er3+ doped fluogermanate glass.
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Xiyan Zhang, Zhifeng Cao, Kuisheng Yang, Bo Song, Jing he Liu, "Preparation and spectroscopic properties of Er3+-doped fluogermanate glass", Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); doi: 10.1117/12.318285; https://doi.org/10.1117/12.318285

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