Fragmentation of N2 in 410 nm Intense Femtosecond Laser Field

作     者：Wei Guo Jing-yi Zhu Yan-qiu Wang Li Wang 

作者机构：State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China Graduate School of Chinese Academy of Sciences Beijing 100049 China 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2009年第22卷第1期

页      面：1-6页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (No.20633070 and No.20473090) 

主　　题：Velocity mapping Non-Coulombic fragmentation Energy distribution Angular distribution 

摘      要：Fragmentations of N2 in linearly polarized femtosecond 410 and 820 nm intense laser fields were studied by using the velocity mapping technique. Different behaviors of N2 at 410 and 820 nm were observed. Both the kinetic energy distributions and angular distributions of fragment ions in 410 nm field show weak dependency on laser intensities in the non- saturation regime, in contrast to the case in 820 nm. Different excited electronic states, i.e., non-Coulombic potentials populated via vertical＇excitation, are suggested to play crucial roles in fragmentations at short wavelength.