| 钇原子亚稳态寿命的测量 |
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| 引用本文： | 杜清,李世芳.钇原子亚稳态寿命的测量[J].光学学报,1990,10(11):70-974. |
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| 作者姓名： | 杜清 李世芳 |
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| 作者单位： | 中国科学院上海光学精密机械研究所
(杜清，李世芳，周志尧，朱利洲)，中国科学院上海光学精密机械研究所(林福成) |
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| 摘 要： | 利用基态原子无穷长的寿命以及亚稳态原子在飞行过程中的衰减,比较由激光感应荧光法测量到的钇原子束基态和亚稳态的速度分布曲线,经过拟合处理计算,得到钇原子亚稳态a~2D_(5/2)的寿命为(0.8±0.2)ms.
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| 关 键 词： | 钇 原子 亚稳态 寿命 测量 |
| 收稿时间： | 1989/12/15 |
Lifetime measurement of metastable state of Yttrium atom |
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| DU QING,LI SHIFANG,ZHOU ZHIYAO,ZHU LIXHOU AND LIN FUCHENG.Lifetime measurement of metastable state of Yttrium atom[J].Acta Optica Sinica,1990,10(11):70-974. |
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| Authors: | DU QING LI SHIFANG ZHOU ZHIYAO ZHU LIXHOU AND LIN FUCHENG |
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| Abstract: | Measurement of Doppler-shifb profile of yttrium atomic beam was performed by using a tunable dye laser and laser induced fluorescence (LIF) technique. Comparing the intensities of two LIF which originate from the ground state and metastable state with different velocity, the lifetime of the metastable statc a2D5/2 of yttrium was measured to be (0.8+0.2)ms. |
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| Keywords: | the lifetime of the metastable state atom the velocity distributions of atom beam Yttrium atom |
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