论文标题
通过扭曲的和平面波的谐振原子的谐振顺序两光子电离
Resonant sequential two-photon ionization of atoms by twisted and plane-wave light
论文作者
论文摘要
我们通过在完全相对论的框架内通过扭曲和平面波的结合来研究中性原子的共振顺序两光子电离。特别地，考虑了通过$ 3^{2} p_ {2} p_ {3/2} $ cluck的$ 3^{1/2} $状态的中性钠原子的电离（$ z = 11 $）的电离。我们详细研究了传入扭曲辐射的运动学参数对光电子角分布和圆形二分法的影响。此外，我们研究了该过程对这些数量的几何形状的影响。这是通过更改传入扭曲和平面波的传播方向来执行的。发现如果平面波和扭曲的光束彼此垂直，对扭曲光子的运动学参数的依赖性是最强的。
We study the resonant sequential two-photon ionization of neutral atoms by a combination of twisted- and plane-wave light within a fully relativistic framework. In particular, the ionization of an isotropic ensemble of neutral sodium atoms ($Z = 11$) from their ground $3^{2}S_{1/2}$ state via the $3^{2}P_{3/2}$ level is considered. We investigate in details the influence of the kinematic parameters of incoming twisted radiation on the photoelectron angular distribution and the circular dichroism. Moreover we study the influence of the geometry of the process on these quantities. This is performed by changing the propagation directions of the incoming twisted and plane-wave light. It is found that the dependence on the kinematic parameters of the twisted photon is the strongest if the plane-wave and twisted light beams are perpendicular to each other.
