Growth, Optical Properties and Defects of High-Doped Yb∶YAl3(BO3)4 Crystal
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第1期
论文作者：Wang Xuping Liang Ximin Wang Jiyang Zhao Hongyang Li Jing Zhang Huaijin
Key words：crystal growth; laser material; defects;
Abstract: High-doped Yb∶YAl3 (BO3)4 (Yb∶YAB) crystals were grown by the flux method using K2Mo3O10 as the flux. The efficient segregation coefficient was measured by using EPMA. The absorption and fluorescence spectra was measured at room temperature and compared the spectral parameters with Yb∶YAB of other Yb3+ concentrations. With the increase of the Yb3+ concentration, the main absorption and fluorescence peaks almost do not change, but the absorption coefficient and FWHM increase. The defects were investigated by using chemical etching method. The main defects are cracks, inclusions, dislocations and twins, which of them are more than low-doped crystals.
Wang Xuping1，Liang Ximin1，Wang Jiyang1，Zhao Hongyang1，Li Jing1，Zhang Huaijin1
(1.State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China)
Abstract:High-doped Yb∶YAl3 (BO3)4 (Yb∶YAB) crystals were grown by the flux method using K2Mo3O10 as the flux. The efficient segregation coefficient was measured by using EPMA. The absorption and fluorescence spectra was measured at room temperature and compared the spectral parameters with Yb∶YAB of other Yb3+ concentrations. With the increase of the Yb3+ concentration, the main absorption and fluorescence peaks almost do not change, but the absorption coefficient and FWHM increase. The defects were investigated by using chemical etching method. The main defects are cracks, inclusions, dislocations and twins, which of them are more than low-doped crystals.
Key words:crystal growth; laser material; defects;
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