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 (18)

• Generation of phase-matched circularly-polarized extreme ultraviolet high harmonics for magnetic circular dichroism spectroscopy
• Multiphoton detachment of electrons from negative ions
• A practical scheme for generating isolated elliptically polarized attosecond pulses using bi-chromatic counter rotating circularly polarized laser fields
• Ultrafast Preparation and Detection of Ring Currents in Single Atoms
• Electron spin polarization in strong-field ionization of Xenon atoms
• Nonadiabatic tunneling in circularly polarized laser fields: Derivation of formulas
• Non-adiabatic Coulomb effects in strong field ionisation in circularly polarised laser fields
• Solving the m-mixing problem for the three-dimensional time-dependent Schrödinger equation by rotations: application to strong-field ionization of H2+
• The role of spin and angular momentum in strong-field ionization
• Strong-field ionization of He by elliptically polarized light in attoclock configuration
• $R$-matrix with Time-dependence Theory for Ultrafast Atomic Processes in Arbitrary Light Fields
• Opportunities for detecting ring currents using the attoclock set-up
• 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${}^{-}$
• Strong-field approximation in a rotating frame: High-order harmonic emission from p states in bicircular fields
• Ionization and excitation of the excited hydrogen atom in strong circularly polarized laser fields
• Extreme-ultraviolet-initiated High-harmonic Generation in Ar${}^{+}$

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