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0.5at.% Yb:YAlO 3 (YAP), 5at.% Yb:YAP and 15at.% Yb:YAP were grown using the Czochralski method. Their absorption and fluorescence spectra were measured at room temperature and their emission line shape was calculated using the method of reciprocity. It was observed that the fluorescence spectra changed appreciably with the increasing of Yb concentration. For 0.5at.% Yb:YAP, the line shape...
Yb:YAG single crystals with Yb doping concentration 5.4, 16.3, 27.1, 53.6, and 100at.% were grown by the Czochralski process. The effects of Yb concentration on the absorption spectra (190–1100nm), fluorescence spectra under 940nm and X-ray excitation were studied. The concentration quenching of fluorescence was observed when the Yb doping concentration reaches to as high as 27.1at.% for Yb:YAG. Under...
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