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

doi:10.1088/1674-1056/23/5/053201

中国物理B ›› 2014, Vol. 23 ›› Issue (5): 53201-053201.doi: 10.1088/1674-1056/23/5/053201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

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

王俊^a, 王兵兵^b, 郭福明^a, 李苏宇^a, 丁大军^a, 陈基根^c, 曾思良^{d e}, 杨玉军^a

a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China;
d Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
e Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

收稿日期:2013-11-27 修回日期:2013-12-20 出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
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).

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

Wang Jun (王俊)^a, Wang Bing-Bing (王兵兵)^b, Guo Fu-Ming (郭福明)^a, Li Su-Yu (李苏宇)^a, Ding Da-Jun (丁大军)^a, Chen Ji-Gen (陈基根)^c, Zeng Si-Liang (曾思良)^{d e}, Yang Yu-Jun (杨玉军)^a

a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China;
d Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
e Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Received:2013-11-27 Revised:2013-12-20 Online:2014-05-15 Published:2014-05-15
Contact: Yang Yu-Jun E-mail:yangyj@jlu.edu.cn
About author:32.80.Rm; 42.50.Hz
Supported by:
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).

摘要/Abstract

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.

关键词: Bohmian trajectory, molecular high-order harmonic generation, dynamic interference

Abstract: 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.

Key words: Bohmian trajectory, molecular high-order harmonic generation, dynamic interference

中图分类号: (Multiphoton ionization and excitation to highly excited states)

32.80.Rm

42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

王俊, 王兵兵, 郭福明, 李苏宇, 丁大军, 陈基根, 曾思良, 杨玉军. Probing dynamic interference in high-order harmonic generation from long-range molecular ion：Bohmian trajectory investigation[J]. 中国物理B, 2014, 23(5): 53201-053201.

Wang Jun (王俊), Wang Bing-Bing (王兵兵), Guo Fu-Ming (郭福明), Li Su-Yu (李苏宇), Ding Da-Jun (丁大军), Chen Ji-Gen (陈基根), Zeng Si-Liang (曾思良), Yang Yu-Jun (杨玉军). Probing dynamic interference in high-order harmonic generation from long-range molecular ion：Bohmian trajectory investigation[J]. Chin. Phys. B, 2014, 23(5): 53201-053201.

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

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

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