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arXiv 2504.08573physics.atom-ph
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原子强场电离中的手性电子动量分布

Chiral Electron Momentum Distribution upon Strong-Field Ionization of Atoms

A. Geyer, J. Stindl, I. Dwojak, M. Hofmann, N. Anders, P. Roth, P. Daum, J. Kruse, S. Jacob, S. Gurevich, N. Wong, M. S. Schöffler, L. Ph. H. Schmidt, T. Jahnke… 展开作者

A. Geyer, J. Stindl, I. Dwojak, M. Hofmann, N. Anders, P. Roth, P. Daum, J. Kruse, S. Jacob, S. Gurevich, N. Wong, M. S. Schöffler, L. Ph. H. Schmidt, T. Jahnke, M. Kunitski, R. Dörner, S. Eckart

AI总结:

本文提出用两束正交双色激光合成三维场,在原子强场电离中产生手性电子动量分布,并模拟验证,为未来三维激光场合成实验提供基准。

摘要:

我们提出了一种合成三维激光场的方案,该方案在原子强场电离时产生手性电子动量分布。我们的方法采用两束正交传播的双色激光束。这导致合成光场的电场矢量随时间变化,且在焦体积内不同位置处有所不同。对于每个位置,我们模拟了相应的电子动量分布,其中包含了隧穿后的非绝热动力学和库仑相互作用。对于合适的激光参数,只有焦体积的一小部分对最终动量分布有贡献。因此,对所有位置坐标进行积分后,一个特定的手性激光场占主导。这导致体积平均的电子动量分布也是手性的。这项工作将为未来旨在合成定义明确的三维激光场的强场实验提供基准。

英文摘要:

We present a scheme to synthesize a three-dimensional laser field that produces a chiral electron momentum distribution upon strong-field ionization of atoms. Our approach employs two orthogonally propagating two-color laser beams. This results in a time-dependent three-dimensional electric field vector of the combined light field which varies for different positions within the focal volume. For each position, we conduct a simulation of the corresponding electron momentum distribution that includes non-adiabatic dynamics and Coulomb interaction after tunneling. For suitable laser parameters, only a small region of the focal volume contributes to the final momentum distribution. Thus, integrating over all position coordinates, a specific chiral laser field dominates. This leads to a volume-averaged electron momentum distribution, which is chiral, as well. This work will serve as a benchmark for future strong-field experiments aiming at the synthetization of well-defined, three-dimensional laser fields.

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。

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