Real-time visualization of the dynamic evolution of CS2 4d and 6s Rydberg wave packet components.
Real-time visualization of the dynamic evolution of CS2 4d and 6s Rydberg wave packet components.
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DOI：
10.1364/oe.19.004542
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发表时间：
2011-02
期刊：
影响因子：
3.8
通讯作者：
Jinyou Long;Yuzhu Liu;Chaochao Qin;Song Zhang;Bing Zhang
中科院分区：
文献类型：
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作者：
Jinyou Long;Yuzhu Liu;Chaochao Qin;Song Zhang;Bing Zhang
CS2 4d和6s里德堡波包分量的动态演化已通过飞秒时间分辨光电子成像结合时间分辨质谱实验可视化。所制备的里德伯波包的四个分量的时间演化被直接观察到作为主光电子峰的不同部分的强度随时间的变化。此外，时间分辨光电子角分布（PAD）清楚地反映了4d和6s分子轨道的不同组成特征。Rydberg波包的寿命约为830fs，其衰变归因于预解离。我们的结果表明，有可能直接可视化和确定多原子分子中不同电子和振动波包分量的振幅和相对相位。
The dynamic evolution of CS2 4d and 6s Rydberg wave packet components has been experimentally visualized via femtosecond time-resolved photoelectron imaging coupled with time-resolved mass spectroscopy. The temporal evolution of the four components of the prepared Rydberg wave packet is directly observed as time-dependent changes of the intensities of different parts in the main photoelectron peak. Furthermore, time-resolved photoelectron angular distributions (PADs) clearly reflect the different component characters of 4d and 6s molecular orbitals. The lifetime of Rydberg wave packets is determined to be about 830fs and their decay is attributed to predissociation. Our results suggest the possibility of directly visualizing and determining the amplitudes and relative phases of different electronic and vibrational wave packet components in polyatomic molecules.