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

作　　者：王俊 王兵兵 郭福明 李苏宇 丁大军 陈基根 曾思良 杨玉军 

机构地区：[1]Institute of Atomic and Molecular Physics,Jilin University [2]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences [3]Department of Physics and Materials Engineering,Taizhou University [4]Science and Technology Computation Physics Laboratory,Institute of Applied Physics and Computational Mathematics [5]Data Center for High Energy Density Physics,Institute of Applied Physics and Computational Mathematics

出　　处：《Chinese Physics B》2014年第5期233-237,共5页中国物理B（英文版）

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);the Research Foundation for Basic Research of Jilin Province,China(Grant No.20140101168JC)

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.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.

关 键 词：Bohmian trajectory molecular high-order harmonic generation dynamic interference 

分 类 号：O562[理学—原子与分子物理]