Routes to formation of highly excited neutral atoms in the breakup of strongly driven H 2
Routes to formation of highly excited neutral atoms in the breakup of strongly driven H 2
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DOI：
10.1103/physreva.85.011402
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发表时间：
2011-05
影响因子：
2.9
通讯作者：
A. Emmanouilidou;C. Lazarou;A. Staudte;U. Eichmann
中科院分区：
文献类型：
--
作者：
A. Emmanouilidou;C. Lazarou;A. Staudte;U. Eichmann
我们给出了在库仑爆炸过程中，对于强驱动的${\Text{H}}_{2}$的高激发中性氢原子(${Text{H}}^{*}$)的形成的理论准经典处理。这一过程，在激光关闭后，一个电子逃逸到连续体，而另一个处于里德堡态，最近在一项实验研究中报道[B.Manschmitus等人，物理。莱特牧师。102、113002(2009年)]。我们发现，为了正确地解释导致${\Text{H}}^{*}$形成的所有路径，双电子效应是重要的。我们确定了两条路径，在这两条路径中，逃逸到连续体的电子要么非常快地逃逸到连续体中，要么在激光场的几个周期内保持束缚。这两条H的形成路径在逃逸电子动量分量的概率分布上具有明显的痕迹。
We present a theoretical quasiclassical treatment of the formation, during Coulomb explosion, of highly excited neutral H atoms (${\text{H}}^{*}$) for strongly driven ${\text{H}}_{2}$. This process, where after the laser field is turned off, one electron escapes to the continuum while the other occupies a Rydberg state, was recently reported in an experimental study [B. Manschwetus et al., Phys. Rev. Lett. 102, 113002 (2009)]. We find that two-electron effects are important in order to correctly account for all pathways leading to ${\text{H}}^{*}$ formation. We identify two pathways where the electron that escapes to the continuum does so either very quickly or after remaining bound for a few periods of the laser field. These two pathways of H${}^{*}$ formation have distinct traces in the probability distribution of the escaping electron momentum components.