科研之友
微信
新浪微博
Facebook
分享链接
摘要
In kinematically complete studies we explore double ionization (DI) of Ne and Ar in the threshold regime (I > 3 X 10(13) W/cm(2)) for 800 nm, 45 fs pulses. The basic differences are found in the two-electron momentum distributions-"correlation" (CO) for Ne and "anticorrelation" (ACO) for Ar-that can be partially explained theoretically within a 3D classical model including tunneling. Transverse electron momentum spectra provide insight into "Coulomb focusing" and point to correlated nonclassical dynamics. Finally, DI threshold intensities, CO as well as ACO regimes are predicted for both targets.
- 出版日期2010-4-30
- 单位北京应用物理与计算数学研究所; 北京大学
