Unraveling Vibrational Wavepacket Dynamics using Femtosecond Ion Yield Spectroscopy and Photoelectron Imaging  

用飞秒离子产率谱和光电子影像解析振动波包动力学（英文）

作　　者：Bing Zhang 张冰(中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室)

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

出　　处：《Chinese Journal of Chemical Physics》2019年第1期35-45,I0001,共12页化学物理学报（英文）

基　　金：supported by the National Natural Science Foundation of China (No.21327804, No.21773299, No.91121006, No.21573279, No.11574351, No.11774385, No.11674355, No.21503270, and No.21303255)

摘　　要：Time-resolved photoionization is a powerful experimental approach to unravel the excited state dynamics in isolated polyatomic molecules. Depending on species of the collected signals, different methods can be performed: time-resolved ion yield spectroscopy (TR-IYS) and time-resolved photoelectron imaging (TR-PEI). In this review, the essential concepts linking photoionization measurement with electronic structure are presented, together with several important breakthroughs in experimentally distinguishing the oscillating wavepacket motion between different geometries. We illustrate how femtosecond TR-IYS and TR-PEI are employed to visualize the evolution of a coherent vibrational wavepacket on the excited state surface.

关 键 词：Vibrational wavepacket Time-resolved ion yield Photoelectron imaging Excited state dynamics 

分 类 号：O643.12[理学—物理化学]