| ZBLAN玻璃中三价铒离子 2H11/2,4S3/2辐射跃迁的量子效率 |
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| 引用本文： | 杨栈茨,黄世华,吕少哲,陈宝玖.ZBLAN玻璃中三价铒离子 2H11/2,4S3/2辐射跃迁的量子效率[J].中国稀土学报,2004,22(3):307-311. |
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| 作者姓名： | 杨栈茨 黄世华 吕少哲 陈宝玖 |
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| 作者单位： | 1. 北京交通大学光电子技术研究所,北京,100044
2. 中国科学院长春光学精密机械与物理研究所,激发态物理开放实验室,吉林,长春,130023 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | 为了探讨铒离子掺杂材料的激光制冷可能性, 依据测量样品的吸收光谱, 计算了Er3 掺杂的ZBLAN玻璃材料的Judd-Ofelt参数, 得到Ω2=3.01×10-20 cm2, Ω4=1.59×10-20 cm2, Ω6=1.03×10-20 cm2, 进而获得了2H11/2, 4S3/2及其以下各能级间跃迁的跃迁几率、分支比、寿命等数据. 测量了77 K到315 K温度范围内Er3 较强的两个绿色发射2H11/2, 4S3/2→4I15/2的发射谱及荧光寿命. 讨论了2H11/2, 4S3/2这样处于热平衡中的两个能级的量子效率的计算方法, 进而计算了它们的量子效率, 并与其它材料进行了比较.
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| 关 键 词： | J-O参数 反Stokes荧光 量子效率 稀土 |
| 文章编号： | 1000-4343(2004)03-0307-05 |
Radiative Transition Quantum Efficiency of 2H11/2, 4S3/2 States of Trivalent Erbium Ion in ZBLAN Glass |
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| Yang Zhanci,Huang Shihua.Radiative Transition Quantum Efficiency of 2H11/2, 4S3/2 States of Trivalent Erbium Ion in ZBLAN Glass[J].Journal of the Chinese Rare Earth Society,2004,22(3):307-311. |
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| Authors: | Yang Zhanci Huang Shihua |
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| Affiliation: | Yang Zhanci~1,Huang Shihua~ |
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| Abstract: | The optical transition intensity parameters of erbium ion in ZBLAN glass were calculated by using Judd-Ofelt theory. With the obtained parameters, the transition probabilities, branching ratios and lifetimes of different states in Er~(3 ) doped ZBLAN glass were calculated. Temperature dependences of the emission spectrum and the lifetime of the (()~2H_(11/2),) (()~4S_(3/2)) states of trivalent erbium ion were measured within the temperature range from 77 to 315 K. The method for calculating the radiative transition quantum efficiency of the (()~2H_(11/2)), (()~4S_(3/2)) states in thermal equilibrium was discussed. The quantum efficiency of (()~2H_(11/2),) (()~4S_(3/2)) states of Er~(3 ) in ZBLAN glass was calculated and compared with that in other host materials. |
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| Keywords: | Judd-Ofelt parameters anti-stokes fluorescence quantum efficiency rare earths |
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