Resonant sequential two-photon ionization of atoms by twisted and plane-wave light

Abstract

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.

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Cited by in corpus (6)

• Promises and challenges of high-energy vortex states collisions
• Angular distribution of photoelectrons generated in atomic ionization by twisted radiation
• Generation of vortex electrons by atomic photoionization
• Double-twisted spectroscopy with delocalized atoms
• Vector parameters in atomic ionization by twisted light: polarization of electron and residual ion
• High Harmonic Generation with Orbital Angular Momentum Beams: Beyond-dipole Corrections