نتایج جستجو برای: ultraviolet spectroscopy

تعداد نتایج: 207737  

Journal: :The Journal of Physical Chemistry A 2010

Journal: :Physical review letters 2000
J A Davies R E Continetti D W Chandler C C Hayden

Femtosecond time-resolved photoelectron angular distributions (PADs) are measured for the first time in the molecular frame of a dissociating molecule. Various stages of the dissociation process, NO2-->NO(C Pi)+O(P), are probed using ionization of the NO(C Pi) fragment to NO+(X Sigma(+)). The PADs evolve from forward-backward asymmetric with respect to the dissociation axis at short time delays...

Journal: :Journal of the Spectroscopical Society of Japan 2008

2016
Xu Wang Anh-Thu Le Chao Yu R. R. Lucchese C. D. Lin

We discuss a scheme to retrieve transient conformational molecular structure information using photoelectron angular distributions (PADs) that have averaged over partial alignments of isolated molecules. The photoelectron is pulled out from a localized inner-shell molecular orbital by an X-ray photon. We show that a transient change in the atomic positions from their equilibrium will lead to a ...

Journal: :Physical review letters 2014
Min Li Ji-Wei Geng Hong Liu Yongkai Deng Chengyin Wu Liang-You Peng Qihuang Gong Yunquan Liu

We measure high resolution photoelectron angular distributions (PADs) for above-threshold ionization of xenon atoms in infrared laser fields. Based on the Ammosov-Delone-Krainov theory, we develop an intuitive quantum-trajectory Monte Carlo model encoded with Feynman's path-integral approach, in which the Coulomb effect on electron trajectories and interference patterns are fully considered. We...

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