PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION
PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION
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DOI：
10.1103/physrevlett.71.1994
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发表时间：
1993-09-27
影响因子：
8.6
通讯作者：
CORKUM, PB
中科院分区：
文献类型：
--
作者：
CORKUM, PB
在强场多光子电离过程中，激光场每次通过其最大值时都会形成一个波包。在电离后的第一个激光周期内，电子很有可能以非常高的动能返回离子附近。高次谐波产生，多光子双电子喷射，和非常高的能量高于阈值电离电子都是这种电子-离子相互作用的结果。决定这些效应强度的一个重要参数是波包在垂直于激光电场的方向上传播的速率;另一个参数是激光偏振。这些将是未来实验的关键参数。
During strong-field multiphoton ionization, a wave packet is formed each time the laser field passes its maximum value. Within the first laser period after ionization there is a significant probability that the electron will return to the vicinity of the ion with very high kinetic energy. High-harmonic generation, multiphoton two-electron ejection, and very high energy above-threshold-ionization electrons are all consequences of this electron-ion interaction. One important parameter which determines the strength of these effects is the rate at which the wave packet spreads in the direction perpendicular to the laser electric field; another is the laser polarization. These will be crucial parameters in future experiments.