| Semiclassical Approach to Non-Sequential Double Ionization of Diatomic Molecules in Strong Laser Field |
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| 引用本文： | 刘杰 陈京. Semiclassical Approach to Non-Sequential Double Ionization of Diatomic Molecules in Strong Laser Field[J]. 中国物理快报, 2006, 23(1): 91-94 |
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| 作者姓名： | 刘杰 陈京 |
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| 作者单位： | [1]Institute of Applied Physics and Computational Mathematics, PO Box 8009（28）, Beijing 100088 [2]Department of Chemistry, University of Kansas and Kansas Center for Advanced Scientific Computing, Lawrence, KS 66045, USA |
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| 基金项目： | Supported by the National Hi-Tech ICF Committee of China under Grant No 2004AA84ts08, the National Natural Science Foundation of China under Grant No 10574019, the Chemical Sciences, Geosciences, and Biosciences Division, 0ffice of Basic Energy Sciences, 0ffice of Science, Department of Energy of USA, and the National Science Foundation of USA. |
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| 摘 要： | We develop a semiclassical model to describe the non-sequential double ionization of diatomic molecules in an intense linearly polarized field, achieving insight into the two-electron correlation effect in the ionization dynamics. Compared to the experimental data of nitrogen molecules, our model shows a good agreement in the tunnelling regime and a qualitative agreement in the over-barrier regime. We find that the classical collisional trajectories are the main source of the double ionization in the tunnelling regime. As a prediction of our theory, we also calculate the double ionization ratios of H2^2＋/H2^＋ for hydrogen molecules and predict a ratio less than that of nitrogen molecules.
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| 关 键 词： | 非连续双重电离 强激光场 半经典模型 双电子相关效应 电离动力学 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005-10-10 |
Semiclassical Approach to Non-Sequential Double Ionization of Diatomic Molecules in Strong Laser Field |
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| LIU Jie, CHEN Jing. Semiclassical Approach to Non-Sequential Double Ionization of Diatomic Molecules in Strong Laser Field[J]. Chinese Physics Letters, 2006, 23(1): 91-94 |
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| Authors: | LIU Jie CHEN Jing |
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