Ce∶LiM(M=Ca,Sr)A1F_6晶体生长与性能研究  

Study on Crystal Growth and Properties of Ce:LiM(M=Ca,Sr)AlF_6 Crystals

作　　者：那木吉拉图[1] 李京民[2] 袁静 阮永丰 

机构地区：[1]天津大学理学院物理系 [2]河北建筑科技学院电子系,邯郸056038

出　　处：《中国激光》2002年第3期233-235,共3页Chinese Journal of Lasers

摘　　要：报道了在CF4 气氛中生长的掺Ce3 + 的LiM (M =Ca ,Sr)A1F6晶体和掺Ce3 + 的LiSr0 .8Ca0 .2 AlF6混晶 ,以及Ce3 + 在这些晶体中的紫外吸收光谱及有效分凝系数。Ce3 + ∶LiSr0 .8Ca0 .2 AlF6在 2 40～ 2 80nm波长范围内有连续展宽的吸收带 ,它的有效分凝系数为 0 0 37。Ce3 + 的吸收带展宽是由于Ce3 + 替代晶体中二价离子位引起的 ,表明Ce3 +Crystal growth of Ce 3+ doped LiM(M=Ca, Sr)AlF 6 mixed crystal were successfully carried out in CF 4 atmosphere. The UV absorption spectra and the effective segregation coefficients of Ce 3+ ions in these crystals were measured and reported. Ce∶LiSr 0.8Ca 0.2AlF 6 crystal shows a broaden absorption band in the wavelength range of 240～280 nm, and the effective segregation coefficient of Ce 3+ ions in the mixed crystals is 0.037. It is believed that the broadening of the absorption band in the Ce∶LiSr 0.8Ca 0.2AlF 6 crystal was caused by substitution of Ce 3+ ions for divalent ions in the Colquiriite structure crystals.

关 键 词：结构晶体 紫外吸收光谱 晶体生长 有效分凝系数 

分 类 号：O78[理学—晶体学]