The influence of vibrational states on high harmonic generation and isolated attosecond pulse from N

• 作 者: Hui-ying Zhong Xin-Lei Ge Hui Du Jing Guo Xue-Shen Liu
• 机 构: Instituteofatomicandmolecularphysics,JilinUniversity,Changchun(130021),P.R.China
• 出 处: 第五届全国计算原子与分子物理学术会议
• 发表日期: 2014年7期

In strong-field physics,High-order harmonic generation(HHG)from molecules has attracted much attention in recent years [1].It can be used as tools for measuring and controlling the dynamic process of electrons in molecules,especially in ultrafast electron dynamics.Explicitly,such phenomenon can be described as follows:a molecule emits its electron to the continuous state through tunneling or multi-photon ionization,then the electron is propagated in the continuum and accelerated in the laser field;finally,it comes back to the core and recombines with the parent ion.Recently,the HHG of atoms have been almost well understood theoretically and experimentally by scientist.Since the interaction between laser and molecules shows more extensive phenomena,such as the multicenter structure [2],molecular orbital tomographic imaging [3],the quantum interference between high-order harmonics originated from different cores the HHG of the molecules need further investigation.Recently,many efforts have been paid to investigate the influence of the nuclear motion on HHG [4,5].