Resolving Ultra-Fast Spin-Orbit Dynamics in Heavy Many-Electron Atoms
Atomic Physics
2019-11-04 v1
Abstract
We use R-Matrix with Time-dependence (RMT) theory, with spin-orbit effects included, to study krypton irradiated by two time-delayed XUV ultrashort pulses. The first pulse excites the atom to 4s4p5s. The second pulse then excites 4s4p5s autoionising levels, whose population can be observed through their subsequent decay. By varying the time delay between the two pulses, we are able to control the excitation pathway to the autoionising states. The use of cross-polarised light pulses allows us to isolate the two-photon pathway, with one photon taken from each pulse.
Cite
@article{arxiv.1911.00390,
title = {Resolving Ultra-Fast Spin-Orbit Dynamics in Heavy Many-Electron Atoms},
author = {Jack Wragg and Daniel D. A. Clarke and Gregory S. J. Armstrong and Andrew C. Brown and Connor P. Ballance and Hugo W. van der Hart},
journal= {arXiv preprint arXiv:1911.00390},
year = {2019}
}