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Abstract:
用提拉法生长出光学质量的Ho3+:ZnWO4单晶,研究了晶体在可见和近红外区的吸收光谱和发射光谱,分析了Ho3+离子在钨酸锌晶体结构中能级位置和晶体场能级分裂.研究表明:在波长488 nm激光激发时,550,665 nm和758 nm 3个波段有较强荧光,荧光分支比分别为84.18%,0.68%,15.14%,对应于5S2→5I8,5F5→5I8和5S2→5I7跃迁.在633 nm激光激发时观测到了来自5S2→5I8跃迁的540~556 nm宽带上转换荧光,上转换过程主要是单离子步进吸收.
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Source :
硅酸盐学报
ISSN: 0454-5648
Year: 2005
Issue: 5
Volume: 33
Page: 538-541,546
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 18
Chinese Cited Count:
30 Days PV: 8
Affiliated Colleges: