Non-sequential double ionization with near-single cycle laser pulses.
Non-sequential double ionization with near-single cycle laser pulses.
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DOI：
10.1038/s41598-017-07635-5
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发表时间：
2017-08-08
影响因子：
4.6
通讯作者：
Emmanouilidou A
中科院分区：
文献类型：
--
作者：
Chen A;Kübel M;Bergues B;Kling MF;Emmanouilidou A
三维半经典模型用于研究强度范围从 0.85 × 1014 W/cm2 到 5 × 1014 W/cm2 的近红外和近单周期激光脉冲驱动时 Ar 的双电离。不对称参数、沿激光场偏振方向的两个电子动量分量之和的分布以及相关电子动量被计算为强度和载流子包络相位的函数。与最近在使用近单周期激光脉冲的运动学完整实验中获得的结果非常一致。此外，还研究了双电离的直接和延迟途径对上述可观测值的贡献。最后，用三维半经典模型再现了实验获得的较高强度的反相关动量模式，并表明这是由于随着强度的增加从强碰撞到软碰撞的转变。
A three-dimensional semiclassical model is used to study double ionization of Ar when driven by a near-infrared and near-single-cycle laser pulse for intensities ranging from 0.85 × 1014 W/cm2 to 5 × 1014 W/cm2. Asymmetry parameters, distributions of the sum of the two electron momentum components along the direction of the polarization of the laser field and correlated electron momenta are computed as a function of the intensity and of the carrier envelope phase. A very good agreement is found with recently obtained results in kinematically complete experiments employing near-single-cycle laser pulses. Moreover, the contribution of the direct and delayed pathways of double ionization is investigated for the above observables. Finally, an experimentally obtained anti-correlation momentum pattern at higher intensities is reproduced with the three-dimensional semiclassical model and shown to be due to a transition from strong to soft recollisions with increasing intensity.
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影响因子：
8.6
作者：
Kopold, R;Becker, W;Sandner, W
通讯作者：
Sandner, W
影响因子：
8.6
作者：
Staudte, A.;Ruiz, C.;Doerner, R.
通讯作者：
Doerner, R.
影响因子：
8.6
作者：
Feuerstein, B;Moshammer, R;Sandner, W
通讯作者：
Sandner, W
影响因子：
--
作者：
ABRINES, R;PERCIVAL, IC
通讯作者：
PERCIVAL, IC
DOI：
10.1088/0953-4075/38/9/021
发表时间：
2005-05-14
影响因子：
1.6
作者：
Becker, A;Dörner, R;Moshammer, R
通讯作者：
Moshammer, R