| Y3Ga5O12:Cr3+激光晶体的发光特性 |
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| 引用本文： | 文根旺,刘颂豪.Y3Ga5O12:Cr3+激光晶体的发光特性[J].发光学报,1989,10(2):123-129. |
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| 作者姓名： | 文根旺 刘颂豪 |
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| 作者单位： | 1. 湖南师范大学物理系;2. 华南师范大学 |
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| 摘 要： | 在10K—300K温度范围内测量了Cr3+:Y3Ga5O12晶体对应于2E→4A2与4T2→4A2跃迁谱峰的荧光寿命。得出2E、2T1与4T2态的辐射寿命分别为965.8μs、130.7μs与88.6μs。理论拟合的标准相对误差为2.85%。分析了荧光的热猝灭机理,导出了荧光寿命和辐射量子效率的温度依赖关系。
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| 关 键 词： | 激光晶体 发光特性 Y3Ga5O12 Cr^3＋ |
| 收稿时间： | 1988-05-03 |
LUMINESCENCE PROPERTIES OF Y3Ga5O12:Cr3+ LASER CRYSTAL |
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| Wen Genwang,Liu Songhao.LUMINESCENCE PROPERTIES OF Y3Ga5O12:Cr3+ LASER CRYSTAL[J].Chinese Journal of Luminescence,1989,10(2):123-129. |
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| Authors: | Wen Genwang Liu Songhao |
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| Institution: | 1. Department of Physics, Hunan Normal University;2. South China Normal University |
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| Abstract: | We have measured the fluorescence lifetime of emission peaks corresponding to 2E→4A2 and 4T2→4A2 transition for Cr3+:Y3Ga5O12 laser crystal under the temperature range of 10K to 300K. The radiative lifetimes of 2E, 4T2 and 4T2 are 965.8ns, 130.7ns and 88.6us respectively with the standard relative fitting deviation of 2.85%. The thermal quenching mechanism of fluorescence is investigated and some suitable relativities for the temperature dependence of fluorescence lifetime and radiative quantum yield are derived. |
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