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

作     者：白丽华 刘宇恒 崔婷婷 王燕 张惠芳 Li-hua Bai;Yu-heng Liu;Ting-ting Cui;Yan Wang;Hui-fang Zhang

作者机构：上海大学物理系上海200444 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2011年第24卷第2期

页      面：141-144,I0003页

核心收录：

学科分类：07[理学] 0703[理学-化学] 0702[理学-物理学] 

主　　题：Asymmetry parameter Photodetachment Carrier-envelop phase Few-cycle pulse H- 

摘      要：Photodetachment of H- irradiated by linearly polarized few-cycle laser field is investigated by time-dependent SchrSdinger 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.