物理学报2012，Vol.61Issue(23)：180-186,7.
椭圆偏振激光脉冲驱动的氩原子非次序双电离对激光强度的依赖
Laser intensity dependence of nonsequential double ionization of argon atoms by elliptically polarized laser pulses
摘要
Abstract
With a classical ensemble model, we investigate the intensity dependence of nonsequential double ionization (NSDI) of argon atoms by elliptically polarized laser pulses. The results show that the correlated behavior of two electrons along the long axis of the laser polarization plane depends on the laser intensity. At the relatively high intensity, the correlated electron momentum spectrum displays a correlated behavior and shows V-like structures in the first and third quadrants. At the relatively low intensity, the correlated electron momentum spectrum shows a strongly anticorrelated behavior. For the different laser intensities, the momentum spectra of two electrons along the short axis of the laser polarization plane all show strongly anticorrelated behaviors. The analysis of the classical trajectories of NSDI shows that the final-state electron repulsion plays a decisive role in both the V-like shape along the long axis of the laser polarization plane and the anticorrelated behavior along the short axis of the laser polarization plane.关键词
非次序双电离/椭圆偏振激光脉冲/返回能量/电子关联Key words
nonsequential double ionization/elliptically POlarized laser pulse/returning energy/electron correla-tion分类
数理科学引用本文复制引用
余本海,李盈傧..椭圆偏振激光脉冲驱动的氩原子非次序双电离对激光强度的依赖[J].物理学报,2012,61(23):180-186,7.基金项目
国家自然科学基金（批准号：11005088,11047145）、河南省科技计划项目（批准号：102300410241,112300410021）和河南省教育厅自然科学研究计划项目（批准号：20118140018）资助的课题. （）
