| Title | Strong-field ionization of Ar atoms with a 45 degrees cross-linearly-polarized two-color laser field |
| Authors | Fang, Yiqi He, Chaoxiong Han, Meng Ge, Peipei Yu, Xiaoyang Ma, Xueyan Deng, Yongkai Liu, Yunquan |
| Affiliation | Peking Univ, Sch Phys, Beijing 100871, Peoples R China Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China Peking Univ, Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 100871, Peoples R China Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China |
| Issue Date | 2019 |
| Publisher | PHYSICAL REVIEW A |
| Abstract | We measure the photoelectron momentum distributions of Ar atoms in cross-linearly-polarized two-color (800 nm+400 nm) laser field with an angle of 45 degrees. The photoelectron momentum distributions are controlled by tuning the phase of the synthesized two-color fields. With semiclassical numerical simulation, we have analyzed the subcycle dynamics of the tunneling electron wave packets and have studied the Coulomb effect on the evolution of the tunneling electron wave packets. Our investigation indicates that the Coulomb effects are strongly dependent on the trace of the electric field after the tunneling. The Coulomb focusing effect and the Coulomb defocusing effects can be controlled on the subcycle timescale at this interaction geometry. This crosslinearly-polarized field could be widely used in strong-field physics, such as high-order harmonic generation. |
| URI | http://hdl.handle.net/20.500.11897/546645 |
| ISSN | 2469-9926 |
| DOI | 10.1103/PhysRevA.100.013414 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 物理学院 人工微结构和介观物理国家重点实验室 工学院 |
