Manipulating nonsequential double ionization via alignment of asymmetric molecules.
Manipulating nonsequential double ionization via alignment of asymmetric molecules.
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DOI：
10.1364/oe.17.015550
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发表时间：
2009-08
期刊：
影响因子：
3.8
通讯作者：
Q. Liao;P. Lu
中科院分区：
文献类型：
--
作者：
Q. Liao;P. Lu
使用经典的三维系综，我们表明，在强激光场中的HeH+分子的非顺序双电离可以通过控制相对于激光场的分子轴的排列来操纵。关联电子动量谱在平行于激光场方向上的对称性和总的双电离产额都强烈地依赖于分子轴与激光场之间的角度。当分子轴平行于激光场时，双电离是最可能的，并且平行于激光场的非顺序双电离的相关电子动量谱相对于小对角线表现出最不对称性。
Using classical three-dimensional ensembles, we demonstrate that nonsequential double ionization of HeH+ molecules in an intense laser field can be manipulated by controlling the alignment of the molecular axis relative to the laser field. Both the symmetry of the correlated electron momentum spectrum in the direction parallel to the laser field and the total double ionization yield strongly depend on the angle between the molecular axis and the laser field. When the molecular axis is aligned parallel to the laser field, double ionization is most probable and the correlated electron momentum spectrum parallel to the laser field from nonsequential double ionization exhibits the most asymmetry with respect to the minor diagonal.