| Title | Probing the tunneling electron wave packet using the counter-rotating bi-circular fields |
| Authors | Ge, Peipei Han, Meng Fang, Yiqi Guo, Zhenning Deng, Yongkai Liu, Yunquan |
| Affiliation | Peking Univ, State Key Lab Mesoscop Phys, Sch Phys, Beijing 100871, Peoples R China Peking Univ, Frontiers Sci Ctr Nanooptoelect, Sch Phys, Beijing 100871, Peoples R China Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 100871, Peoples R China |
| Keywords | ORDER HARMONIC-GENERATION DOUBLE-IONIZATION MOMENTUM |
| Issue Date | 7-Jul-2021 |
| Publisher | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS |
| Abstract | We experimentally measure the photoelectron momentum distributions of Ar atoms using two-color 800 nm (omega) + 400 nm (2 omega) counter-rotating circularly polarized fields. By employing a weak fundamental circularly polarized field at 800 nm, the atomic potential barrier formed by the strong second harmonic field at 400 nm can be modulated. This introduces a spatially rotating temporal two-slit interferometry between the photoelectron wave packets tunneling from the modified barriers in the consecutive cycles. The modulation of the barrier would leave its imprint on the photoelectron interference pattern. In analogy to the analysis of the traditional optical interferometry, we perform the Fourier transform on the photoelectron interference. The modulation on the amplitude and phase of the electron wave packets induced by the weak fundamental field is retrieved. |
| URI | http://hdl.handle.net/20.500.11897/623559 |
| ISSN | 0953-4075 |
| DOI | 10.1088/1361-6455/ac076b |
| Indexed | EI SCI(E) |
| 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 |
