Carrier-envelope phase dependence of non-sequential double ionization in few-cycle pulses.
| Autor: | Li H; Department of Physics, State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, Peking University, Beijing 100871, China., Chen J, Jiang H, Liu J, Fu P, Gong Q, Yan ZC, Wang B |
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| Jazyk: | angličtina |
| Zdroj: | Optics express [Opt Express] 2008 Dec 08; Vol. 16 (25), pp. 20562-70. |
| DOI: | 10.1364/oe.16.020562 |
| Abstrakt: | 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. ((c) 2008 Optical Society of America) |
| Databáze: | MEDLINE |
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