Electron rotational asymmetry in strong-field photodetachment from F${}^{-}$ by circularly polarized laser pulses

Abstract

We use the $R$-matrix with time-dependence method to study detachment from F${}^{-}$ in circularly-polarized laser fields of infrared wavelength. By decomposing the photoelectron momentum distribution into separate contributions from detached $2p_1$ and $2p_{-1}$ electrons, we demonstrate that the detachment yield is distributed asymmetrically with respect to these initial orbitals. We observe the well-known preference for strong-field detachment of electrons that are initially counter-rotating relative to the field, and calculate the variation in this preference as a function of photoelectron energy. The wavelengths used in this work provide natural grounds for comparison between our calculations and the predictions of analytical approaches tailored for the strong-field regime. In particular, we compare the ratio of counter-rotating electrons to corotating electrons as a function of photoelectron energy. We carry out this comparison at two wavelengths, and observe good qualitative agreement between the analytical predictions and our numerical results.

References in corpus (6)

• Electron spin polarization in strong-field ionization of Xenon atoms
• Solving the m-mixing problem for the three-dimensional time-dependent Schrödinger equation by rotations: application to strong-field ionization of H2+
• XUV-initiated high harmonic generation: driving inner valence electrons using below-threshold-energy XUV light
• Harmonic generation of noble-gas atoms in the Near-IR regime using ab-initio time-dependent R-matrix theory
• Electron rescattering in strong-field photodetachment of F${}^{-}$
• Ionization and excitation of the excited hydrogen atom in strong circularly polarized laser fields

Cited by in corpus (3)

• Modeling tomographic measurements of photoelectron vortices in counter-rotating circularly polarized laser pulses
• Electron correlation and short-range dynamics in attosecond angular streaking
• Ionization and excitation of low-lying circular states of the hydrogen atom in strong circularly polarized laser fields