1. Nonsequential double ionization of Xe by mid-infrared laser pulses.
- Author
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Ma, Xiaomeng, Li, Min, Zhou, Yueming, and Lu, Peixiang
- Subjects
IONIZATION (Atomic physics) ,XENON ,MID-infrared lasers ,LASER pulses ,MOMENTUM distributions ,NUMERICAL analysis - Abstract
With the three-dimensional semiclassical ensemble model, we studied the correlated electron dynamics in strong-field nonsequential double ionization of Xe by mid-infrared laser pulses over a wide range of laser intensities. Numerical results show that the correlated electron momentum distribution exhibits the strong back-to-back pattern at the lower laser intensity. It evolves into the side-by-side behavior as the laser intensity increases and presents the experimentally observed crosslike shape at high laser intensity. Different from the case of near-infrared region where recollision mainly occurs at the first returning, at the mid-infrared region recollision dominantly occurs at the later returnings. The windows of initial transverse velocity for the various multiple-returning recollision trajectories are different and are unambiguously determined by this semiclassical ensemble model. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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