论文部分内容阅读
The fluorozirconate glasses ZBLANP( ZrF-4-BaF-2-LaF-3-AlF-3-NaF-PbF-2) doped with different Yb+ 3+ 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 Yb+ 3+-doped concentration, we calculated the maximum cooling effect in the 3 wt% Yb+ 3+-doped sample pumped at 1 012.5 nm. The corresponding cooling capability is about -4.09 ℃/W and the cooling efficiency reaches 1.76%.
The fluorozirconate glasses ZBLANP (ZrF - 4-BaF - 2-LaF - 3-AlF - 3-NaF-PbF - 2) doped with different Yb + 3+ 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 Yb + 3 + -doped concentration, we calculated the maximum cooling effect in the 3 wt% Yb + 3 + -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%.