Physics – Atomic Physics
Scientific paper
2008-03-03
Physics
Atomic Physics
4 pages, 4 figures
Scientific paper
10.1103/PhysRevA.77.031402
We investigate the orientation dependence of molecular high-order harmonic generation (HHG) both numerically and analytically. We show that the molecular recollision electronic wave packets (REWPs) in the HHG are closely related to the ionization potential as well as the particular orbital from which it ionized. As a result, the spectral amplitude of the molecular REWP can be significantly different from its reference atom (i.e., with the same ionization potential as the molecule under study) in some energy regions due to the interference between the atomic cores of the molecules. This finding is important for molecular orbital tomography using HHG[Nature \textbf{432}, 867(2004)].
Chen Yanjun
Li Yan
Liu Jie
Yang Shi-ping
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