Nd^3＋：Li3Ba2Re3（MoO4）8（Re=Y，Gd，La）晶体的生长、结构和光谱性能研究

采用顶部籽晶法生长了Nd^3＋：Li3Ba2Re3（MoO4）8（Re=Y，Gd，La）晶体。利用X射线单晶衍射仪证实了其结构，并得到了其晶胞参数。测量了这三种晶体的室温吸收谱和荧光光谱，并计算了吸收光谱和荧光光谱中的相关参数。吸收光谱表明，这三种晶体在805nm处均有较强的吸收，其吸收半峰宽分别为6nm、6nm、7nm，非常适合于LD泵浦。同时根据这三种晶体的荧光光谱计算了其在1．06μm处的发射截面，其峰值分别为：11．6×10-20cm2（Nd3＋：Li3Ba2Y3（MoO4）8），8．7×10-20cm2（Nd3＋：Li3Ba2Y3（MoO4）8），6．2×10-20cm2（Nd3＋：Li3Ba2Y3（MoO4）8）。最后，本文将这三种晶体的相关光谱参数与其它一些掺Nd离子的激光晶体进行了对比。结果显示，Nd^3＋：Li3Ba2Re3（MoO4）8（Re=Y，Gd，La）晶体是一种有潜力的固体激光材料。

Crystal Growth, Structure and Spectral Properties of Nd^3＋：Li3Ba2Re3（MoO4）8（Re=Y,Gd,La） Crystals

Nd^3＋：Li3Ba2Re3（MoO4）8（Re=Y,Gd,La） crystals were grown from melt by the top seeded solution growth method and their structure were confirmed by X--ray analysis. The absorption and emission spectra of the crystals were measured and the spectral properties were investigated. All the crystals have a strong absorption bands at 805nm and the full width at half the maximum （FWHM）are 6,6 and 7nm, respectively. The emission cross sections of the crystals were calculated to be 11.6×10-20cm2 for the Nd^3＋：Li3Ba2Re3（MoO4）8, 7×10-20cm2 for the Nd^3＋：Li3Ba2Re3（MoO4）8 and 6. 2×10-20cm2 for the Nd^3＋：Li3Ba2Re3（MoO4）8 respectively. Finally, the laser properties of the crystals were evaluated and compared with those of other Nd--doped laser crystals,and the results show that Nd^3＋：Li3Ba2Re3（MoO4）8 （Re=Y,Gd,La）crystals may be regarded as a potential solid-state laser host material.