Carrier-envelope phase dependence of non-sequential double ionization in few-cycle pulses.
The influence of carrier-envelope phase (CEP) of a few-cycle laser pulse on non-sequential double ionization (NSDI) of an atom is investigated by applying the three-dimensional semi-classical re-scattering method. The asymmetric momentum distribution of the double-charged ion parallel to the laser polarization, which depends on the CEP, is explained by comparing the contributions from several half-cycles in the laser pulse. The ionization rate and the returning kinetic energy of the first electron dramatically affect the contributions from each half-cycles, and play different roles in different laser intensity regimes.
Li
Hongyun
H
Department of Physics, State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China.
Chen
Jing
J
Jiang
Hongbing
H
Liu
Jie
J
Fu
Panming
P
Gong
Qihuang
Q
Yan
Zong-Chao
ZC
Wang
Bingbing
B
D003198:Computer Simulation; D005740:Gases / Q000737:chemistry* / Q000528:radiation effects*; D007477:Ions; D007834:Lasers; D008027:Light; D008962:Models, Theoretical; D011789:Quantum Theory; D012542:Scattering, Radiation
D005740:Gases; D007477:Ions