Asymmetry in the Strong-field Photodetachment of H- by Linearly Polarized Few-cycle Pulses

作者：Bai, Li-hua^*; Liu, Yu-heng; Cui, Ting-ting; Wang, Yan; Zhang, Hui-fang

来源：Chinese Journal of Chemical Physics, 2011, 24(2): 141-144.

DOI：10.1088/1674-0068/24/02/141-144

• Asymmetry parameter
• Photodetachment
• Carrier-envelop phase
• Few-cycle pulse
• H-

Photodetachment of H- irradiated by linearly polarized few-cycle laser field is investigated by time-dependent Schrodinger equation numerically. The photo-electron left-right asymmetry parameter as a function of carrier-envelop (CE) phase of few-cycle pulses is attained. We confirm the asymmetry of photoelectron distribution in H photodetachment and find that the maximal asymmetry parameter of H- is equal to that of H atom under the same conditions but the corresponding CE phases are quite different. Thus a CE phase shift appears. Compared to that of H atom and field free electron, the zero asymmetry CE phase shift is sensitively affected by Coulomb field. The Coulomb effect on the asymmetry of H- photodetachment mainly behaves in the CE phase shift of H- instead of the amplitude of asymmetry parameter curve.

• 出版日期2011-4
• 单位上海大学