强场光电子全息中非绝热电离和库仑势效应的解析
Unraveling nonadiabatic ionization and Coulomb potential effects in strong-field photoelectron holography
摘要：
强场光电子全息术已被提出作为一种手段，询问的空间和时间信息的电子和离子的动态系统。在电离之后，电子波包的一部分可以直接到达检测器（参考波），而另一部分可以被驱回离子，在那里它被散射（信号波）。这两种波的干涉全息图可用于检索目标信息。然而，与传统的光学全息术不同，电子波包的传播不仅受到激光场的影响，而且还受到库仑势的影响。此外，在整个激光脉冲持续时间内发射电子，因此可能发生多重干涉。本文采用广义量子轨道蒙特卡罗方法研究了库仑势和非绝热次循环电离对光电子全息图的影响。结果表明，光电子全息图只有在考虑电离过程中的非绝热效应时才能得到很好的描述，而库仑势只有在隧道电离区才能忽略不计。我们的研究结果有助于建立光电子全息术，用于探测原子和分子的空间和动力学性质。
英文摘要：
Strong field photoelectron holography has been proposed as a means for interrogating the spatial and temporal information of electrons and ions in a dynamic system. After ionization, part of the electron wave packet may directly go to the detector (the reference wave), while another part may be driven back to the ion where it scatters off (the signal wave). The interference hologram of the two waves may be used to retrieve the target information. However, unlike conventional optical holography, the propagations of electron wave packets are affected by the Coulomb potential as well as by the laser field. In addition, electrons are emitted over the whole laser pulse duration, thus multiple interferences may occur. In this work, we used a generalized quantum-trajectory Monte Carlo method to investigate the effect of Coulomb potential and the nonadiabatic subcycle ionization on the photoelectron hologram. We showed that photoelectron hologram can be well described only when the nonadiabatic effect in ionization is accounted for, and Coulomb potential can be neglected only in the tunnel ionization regime. Our results help establishing photoelectron holography for probing spatial and dynamic properties of atoms and molecules.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
