| 钾原子的双光子共振三光子电离 |
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| 引用本文： | 李昌勇,肖连团,李倩,贾锁堂,周国生.钾原子的双光子共振三光子电离[J].光学学报,1999,19(12):604-1607. |
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| 作者姓名： | 李昌勇 肖连团 李倩 贾锁堂 周国生 |
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| 作者单位： | 山西大学电子信息技术系,太原,030006 |
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| 基金项目： | 国家自然科学基金，山西省自然科学基金 |
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| 摘 要： | 在钾蒸气中用双光子共振三光子电离法测出了钾原子６Ｓ态的电离流随时间的衰减曲线。由电离流和多光子动力学参数的关系计算了６Ｓ态的光电离截面。当用７６６．４ｎｍ和７６９．８ｎｍ单光子激发时，通过能量积聚效应也可诱导钾原子得以电离。
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| 关 键 词： | 双光子共振三光子电离 光电离截面 能量积聚效应 |
| 收稿时间： | 1998/12/21 |
Two-Photon Resonant Three-Photon Ionization of Atomic Potassium |
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| Li Changyong,Xiao Liantuan,Li qian,Jia Suotang,Zhou Guosheng.Two-Photon Resonant Three-Photon Ionization of Atomic Potassium[J].Acta Optica Sinica,1999,19(12):604-1607. |
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| Authors: | Li Changyong Xiao Liantuan Li qian Jia Suotang Zhou Guosheng |
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| Abstract: | By two-photon resonant three-photon ionization in atomic potassium, the ion current decay curve was measured. From the relation between ion current and multi-photon dynamic parameter, photo-ionization cross-section of 6S state in atomic potassium was determined. When excited with one-photon at 766.4 nm and 769.8 nm, the atomic potassium was ionized by energy pooling effect. |
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| Keywords: | two photon resonant three photon ionization photon ionization cross section energy pooling effect |
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