Open AccessElectron dynamics in the strong field limit of photoionization
Author(s) -
B Sheehy,
B Walker,
R Lafon,
M Widmer
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/555238
Subject(s) - photoionization , atomic physics , ionization , physics , double ionization , neon , autoionization , electron , ion , spectral line , nuclear physics , quantum mechanics , argon
High precision photoelectron energy and angular distributions in helium and neon atoms for a broad intensity range reflect the change in the continuum dynamics that occurs as the ionization process evolves into the pure tunneling regime. Elastic rescattering of the laser-driven free electron from its parent ion core leaves a distinct signature on the spectra, providing a direct quantitative test of the various theories of strong field multiphoton ionization. We show that it takes a relatively complete semi-classical rescattering model to accurately reproduce the observed photoelectron distributions. However, the calculated inelastic rescattering rate fails to reproduce the measured nonsequential double ionization yields