Signatures of molecular orbital structure in lateral electron momentum distributions from strong-field ionization.
Signatures of molecular orbital structure in lateral electron momentum distributions from strong-field ionization.
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DOI：
10.1103/physrevlett.114.103004
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发表时间：
2015-03
影响因子：
8.6
通讯作者：
I. Petersen;J. Henkel;M. Lein
中科院分区：
文献类型：
--
作者：
I. Petersen;J. Henkel;M. Lein
从理论上研究了圆偏振激光场中排列双原子和多原子分子（O2、N2、C2H4等）的强场电离。通过计算垂直于极化平面的动量分布的发射角分辨横向宽度，我们发现分子轨道上的节点平面直接印印在宽度的角依赖性上。我们证明，除了观察角度分布外，还可以通过观察横向宽度获得的信息来区分轨道对称性。
Strong-field ionization of aligned diatomic and polyatomic molecules such as O2, N2, C2H4, and others in circularly polarized laser fields is investigated theoretically. By calculating the emission-angle-resolved lateral width of the momentum distribution perpendicular to the polarization plane, we show that nodal planes in molecular orbitals are directly imprinted on the angular dependence of the width. We demonstrate that orbital symmetries can be distinguished with the information obtained by observing the lateral width in addition to the angular distributions.