论文标题
强烈激光脉冲在隧道电离中的非酮效应
Nondipole effects in tunneling ionization by intense laser pulses
论文作者
论文摘要
由于激光诱导的连续电子速度在此极限下，激光频率降低的限量不能独立于非脱唑效应。因此，在这项工作中，考虑到一个有效的领域，考虑了在绝热限制中的隧道电离，该电源包括$ 1/c $的一阶效果，其中$ 1/c $，$ c $带有光速。 nondipole术语描述了由电偶极诱导的电子速度和激光的磁场成分产生的相互作用。讨论了该术语对电离速率，隧道出口，隧道出口的动量和电子动力学的影响。在适当的限制中，非枢机强场近似方法和严格绝热极限的结果是一致的。非二唑强场近似方法用于识别初始条件的非绝热修饰。结果开辟了一条途径，以在最初的隧道电离步骤中包括在强场和Attsecond物理学的半经典模型中。
The limit of decreasing laser frequency can not be considered independently from nondipole effects due to increase in the laser-induced continuum electron speed in this limit. Therefore, in this work, tunneling ionization in the adiabatic limit is considered for an effective field that includes effects beyond the electric-dipole term to first order in $1/c$, with $c$ the speed of light. The nondipole term describes the interaction resulting from the electric dipole-induced velocity of the electron and the magnetic field component of the laser. The impact of this term on the ionization rate, tunnel exit point, momentum at the tunnel exit and electron dynamics is discussed. In the appropriate limit, the results of a nondipole strong-field approximation approach and those of the strict adiabatic limit, where time and field strength are parameters, are consistent. The nondipole strong-field approximation approach is used to identify nonadiabatic modifications of the initial conditions. The results open up an avenue to include nondipole effects in the initial tunneling ionization step in semiclassical models of strong-field and attosecond physics.
