Near-infrared broadband luminescence of Yb-doped PbClF crystals

Near-infrared broadband luminescence of Yb-doped PbClF crystals
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Yb 掺杂 PbClF 晶体的近红外宽带发光

DOI:
10.1016/j.jlumin.2012.02.029
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发表时间:
2012-09
影响因子:
3.6
通讯作者:
Qian, Guoxing
Qian, Guoxing
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Xu, Jun;Su, Liangbi;Li, Hongjun;Zheng, Lihe;Xu, Xiaodong;Wu, Feng;Tang, Huili;Jiang, Dapeng;Qian, Guoxing

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采用改进的Bridgman法制备了掺Yb的PbClF晶体。在掺2.0%Yb ~(3+)的PbClF晶体中观察到了宽带发射(FWHM= 58 nm)和长寿命(5.33ms)。计算得到掺Yb ~(3+)0.5%PbClF晶体中Yb ~(3+)2F ~(7/2)能级的斯塔克分裂为801 cm-1,相应的低激光能级的布居数约为2.13%。结果表明,掺Yb的PbClF晶体是一种很有前途的1.0μm超短脉冲输出材料。
Yb-doped PbClF crystals were obtained by a modified Bridgman method. Broadband emission (FWHM=58nm) with long lifetime (5.33ms) was observed in 2.0% Yb3+-doped PbClF crystals. The Stark splitting of Yb3+2F7/2level was calculated to be 801cm−1in 0.5% Yb3+-doped PbClF crystals, and the corresponding population of lower laser level is about 2.13%. All the results indicated that Yb-doped PbClF crystals should be a promising material to ultrashort pulses output at 1.0μm.
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