Nonsequential double ionization with few-cycle laser pulses.
Nonsequential double ionization with few-cycle laser pulses.
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DOI：
10.1103/physrevlett.92.133006
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发表时间：
2003-10
影响因子：
8.6
通讯作者：
X. Liu;C. Figueira de Morisson Faria
中科院分区：
文献类型：
--
作者：
X. Liu;C. Figueira de Morisson Faria
我们研究微分电子动量分布的非顺序双电离线偏振，几个周期的脉冲，使用一个经典模型的基础上的激光辅助非弹性（e（-），2 e（-））再散射机制。这些产量，作为平行于激光偏振的动量分量的函数，是高度不对称的，并且受到脉冲包络和其载波振荡之间的相位差的强烈影响，从根本上改变它们在临界相位附近的符号。这种行为为绝对相位测量提供了一个强大的工具。
We investigate differential electron momentum distributions in nonsequential double ionization with linearly polarized, few-cycle pulses, using a classical model based on a laser-assisted inelastic (e(-),2e(-)) rescattering mechanism. These yields, as functions of the momentum components parallel to the laser polarization, are highly asymmetric and strongly influenced by the phase difference between the pulse envelope and its carrier oscillation, radically changing their sign around a critical phase. This behavior provides a powerful tool for absolute-phase measurements.