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Probing dynamic interference in high-order harmonic generation from long-range molecular ion： Bohmian trajectory investigation

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：TN24[电子电信—物理电子学] O641[理学—物理化学;理学—化学]
作者机构：[1]Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China, [2]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China, [3]Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China, [4]Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China, [5]Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
相关基金：Project supported by the National Basic Research Program of China （Grant No. 2013CB922200）, the National Natural Science Foundation of China （Grant Nos. 11274141, 11034003, 11304116, 61275128, 11247024, and 11274001）, and the Research Foundation for Basic Research of Jilin Province, China （Grant No. 20140101168JC）. We acknowledge the High Performance Computing Cen- ter of Jilin University for their supercomputer time.

作者：王俊[1], 王兵兵[2], 郭福明[1], 李苏宇[1], 丁大军[1], 陈基根[3], 曾思良[4,5], 杨玉军[1]

关键词：双原子分子离子, 高次谐波产生, 动态干扰, 分子结构信息, 探测, 频度分布, BTS, 本地化, Bohmian trajectory, molecular high-order harmonic generation, dynamic interference

中文摘要：

Using Bohmian trajectory(BT) method, we investigate the dynamic interference in high-order harmonic generation from diatomic molecular ions. It is demonstrated that the main characteristics of the molecular harmonic spectrum can be well reproduced by only two BTs which are located at the two ions. This happens because these two localized trajectories can receive and store the whole collision information coming from all of the other re-collision trajectories. Therefore,the amplitudes and frequencies of these two trajectories represent the intensity and frequency distribution of the harmonic generation. Moreover, the interference between these two trajectories shows a dip in the harmonic spectrum, which reveals the molecular structure information.

英文摘要：

Using Bohmlan trajectory （151） method, we investigate the dynamic interference in nlgn-orcter narmonlc generauon from diatomic molecular ions. It is demonstrated that the main characteristics of the molecular harmonic spectrum can be well reproduced by only two BTs which are located at the two ions. This haiapens because these two localized trajectories can receive and store the whole collision information coming from all of the other re-collision trajectories. Therefore, the amplitudes and frequencies of these two trajectories represent the intensity and frequency distribution of the harmonic generation. Moreover, the interference between these two trajectories shows a dip in the harmonic spectrum, which reveals the molecular structure information.

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