| Title | Low Yield of Near-Zero-Momentum Electrons and Partial Atomic Stabilization in Strong-Field Tunneling Ionization |
| Authors | Liu, Hong Liu, Yunquan Fu, Libin Xin, Guoguo Ye, Difa Liu, Jie He, X. T. Yang, Yudong Liu, Xianrong Deng, Yongkai Wu, Chengyin Gong, Qihuang |
| Affiliation | Peking Univ, Dept Phys, Beijing 100871, Peoples R China. Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. Inst Appl Phys & Computat Math, Natl Key Lab Sci & Technol Computat Phys, Beijing 100088, Peoples R China. Peking Univ, Ctr Appl Phys & Technol, Beijing 100084, Peoples R China. Beijing Inst Technol, Sch Sci, Beijing 100081, Peoples R China. NW Univ Xian, Dept Phys, Xian 710069, Shaanxi, Peoples R China. |
| Keywords | ABOVE-THRESHOLD-IONIZATION LASER FIELD ADIABATIC STABILIZATION FREQUENCY HYDROGEN SPECTRA INTENSE SUPPRESSION RADIATION ENERGY |
| Issue Date | 2012 |
| Publisher | 物理评论快报 |
| Citation | PHYSICAL REVIEW LETTERS.2012,109,(9). |
| Abstract | We measure photoelectron angular distributions of single ionization of krypton and xenon atoms by laser pulses at 1320 nm, 0.2-1.0 x 10(14) W/cm(2), and observe that the yield of near-zero-momentum electrons in the strong-field tunneling ionization regime is significantly suppressed. Semiclassical simulations indicate that this local ionization suppression effect can be attributed to a fraction of the tunneled electrons that are released in a certain window of the initial field phase and transverse velocity are ejected into Rydberg elliptical orbits with a frequency much smaller than that of the laser; i.e., the corresponding atoms are stabilized. These electrons with high-lying atomic orbits are thus prevented from ionization, resulting in the substantially reduced near-zero-momentum electron yield. The refined transition between the Rydberg states of the stabilized atoms has implication on the THz radiation from gas targets in strong laser fields. |
| URI | http://hdl.handle.net/20.500.11897/295738 |
| ISSN | 0031-9007 |
| DOI | 10.1103/PhysRevLett.109.093001 |
| Indexed | SCI(E) EI PubMed |
| Appears in Collections: | 物理学院 工学院 人工微结构和介观物理国家重点实验室 |
