Electron rescattering in strong-field photodetachment of F$^-$

TL;DR

This paper uses ab initio methods to study electron rescattering in strong-field photodetachment of F$^-$ ions, highlighting the role of electron correlation and demonstrating the effectiveness of computational approaches in the near-IR regime.

Contribution

It provides the first ab initio analysis of electron rescattering in F$^-$ photodetachment at near-IR wavelengths, comparing with analytic models and exploring electron correlation effects.

Findings

Rescattering significantly influences the photoelectron spectra.

Ab initio results agree with Keldysh-type analytic models.

Electron correlation impacts the detachment process.

Abstract

We present ab initio studies of photoelectron spectra for above threshold detachment (ATD) of F$^-$ anions in short, 1300 nm and 1800 nm laser pulses. We identify and assess the importance of electron rescattering in strong-field photodetachment of a negative ion through comparison with an analytic, Keldysh-type approach, demonstrating the capability of ab-initio computation in the challenging near-IR regime. We further assess the influence of the strong electron correlation on the photodetachment.