Manipulating Nonsequential Double Ionization of Argon Atoms via Orthogonal Two-Color Field
Yingbin Li1†, Lingling Qin1†, Aihua Liu2,7*, Ke Zhang1, Qingbin Tang1, Chunyang Zhai1, Jingkun Xu3*, Shi Chen4, Benhai Yu1*, and Jing Chen5,6
1College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China 2Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China 3School of Physics and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China 4Center for Applied Physics and Technology, HEDPS, and School of Physics, Peking University, Beijing 100871, China 5Institute of Applied Physics and Computational Mathematics, Beijing 100088, China 6Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Advanced Material Diagnostic Technology, and College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China 7State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, Xi'an 710119, China
Abstract：Using a three-dimensional classical ensemble model, we investigate the dependence of relative frequency and relative initial phase for nonsequential double ionization (NSDI) of atoms driven by orthogonal two-color (OTC) fields. Our findings reveal that the NSDI probability is clearly dependent on the relative initial phase of OTC fields at different relative frequencies. The inversion analysis results indicate that adjusting the relative frequency of OTC fields helps control returning probability and flight time of the first electron. Furthermore, manipulating the relative frequency at the same relative initial phases can vary the revisit time of the recolliding electron, leading that the emission direction of Ar$^{2+}$ ions is explicitly dependent on the relative frequency.
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2022, Vol. 39 
