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

被引：0

作者：

Bai, Li-hua ^{[1
]}

Liu, Yu-heng ^{[1
]}

Cui, Ting-ting ^{[1
]}

Wang, Yan ^{[1
]}

Zhang, Hui-fang ^{[1
]}

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL PHYSICS | 2011年 / 24卷 / 02期

关键词：

Asymmetry parameter; Photodetachment; Carrier-envelop phase; Few-cycle pulse; H-; LASER-PULSES; PHOTOIONIZATION; PHASE; ATOMS;

D O I：

10.1088/1674-0068/24/02/141-144

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

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.

引用

页码：141 / 144

页数：4

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