Prevalence of different double ionization pathways and traces of three-body interactions in strongly driven helium
Prevalence of different double ionization pathways and traces of three-body interactions in strongly driven helium
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DOI：
10.1103/physreva.83.023403
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发表时间：
2011-02-03
影响因子：
2.9
通讯作者：
Emmanouilidou, A.
中科院分区：
文献类型：
--
作者：
Emmanouilidou, A.
我们对强驱动氦气中不同非顺序双电离路径的普遍性提出了统一的处理方法，作为最终电子能量和激光频率和强度的函数。在高总能量下，占主导地位的路径是一个电子在重碰撞后延迟电离的路径。在低总能量下，双电离路径占主导地位，其中两个电子和原子核的再碰撞形成结合化合物至少四分之一激光周期。我们还确定了追踪这些路径普遍性的渐近可观测值。
We present a unified treatment of the prevalence of different nonsequential double ionization pathways in strongly driven helium as a function of the sum of the final electron energies and of the laser frequency and intensity. At high total energy the pathway that dominates is the one where one electron is ionized with a delay following recollision. At low total energy, a double ionization pathway dominates where recollision the two electrons and the nucleus form a bound compound for at least a quarter of a laser cycle. We also identify asymptotic observables that trace the prevalence of these pathways.