Abstract
The fluorozirconate glasses ZBLANP (ZrF4−BaF2−LaF3−NaF−PbF2) doped with different Yb3+ concentration were prepared. The Raman spectra and absorption spectra are measured to substantiate the existence of phonon-assisted emission. After analyzing the normalized absorption spectra of samples with different Yb3+-doped concentration, we calculated the maximum cooling effect in the 3 wt% Yb3+-doped sample pumped at 1 012.5 nm. The corresponding cooling capability is about −4.09 °C/W and the cooling efficiency reaches 1.76%.
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Foundation item: Supported by the Key Science Foundation of Wuhan (9601P0223)
Biography: Xu Tian-ming (1978-), female, Master candidate, research direction: information optics and nonlinear optics.
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Tian-ming, X., Cheng-fang, L., Xiao, Z. et al. Laser cooling using anti-stokes fluorescence in Yb3+-doped fluorozirconate glasses. Wuhan Univ. J. Nat. Sci. 7, 177–181 (2002). https://doi.org/10.1007/BF02830309
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DOI: https://doi.org/10.1007/BF02830309