Abstract
A ceramic 2-µm laser beam visualizer based on Ho3+-doped β-BaZrF6 is proposed. The ceramic has been prepared by crystallizing 60ZrF4–35BaF2–5BiF3 glass doped with 3 wt % HoF3. Exciting the Ho3+5 I 7 level by a Tm:LiYF4 (Tm:YLF) laser at λ = 1910 nm, we observed a strong red luminescence, due to the 5 F 5 → 5 I 8 transition, and a weaker, green luminescence, corresponding to the (5 F 4, 5 S 2) → 5 I 8 transition. The threshold power density of the Tm:YLF laser at which a red spot was observed on a ceramic sample was 1.1 W/cm2.
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Original Russian Text © A.P. Savikin, A.S. Egorov, A.V. Budruev, I.A. Grishin, 2016, published in Neorganicheskie Materialy, 2016, Vol. 52, No. 3, pp. 352–355.
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Savikin, A.P., Egorov, A.S., Budruev, A.V. et al. Ho3+-Doped ZrF4–BaF2–BiF3 Ceramic 2-µm laser beam visualizer. Inorg Mater 52, 309–312 (2016). https://doi.org/10.1134/S0020168516030134
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DOI: https://doi.org/10.1134/S0020168516030134