21 citations · 29 across the 4 of their papers we have counts for
5 papers · 1 filter
Enhancing spin polarization using ultrafast angular streaking
Gregory S. J. Armstrong, Daniel D. A. Clarke, Jakub Benda +3
Through solution of the multielectron, semi-relativistic, time-dependent Schrödinger equation, we show that angular streaking produces strongly spin-polarized electrons in a noble…
Polarization control of high-harmonic generation via the spin-orbit interaction
Jack Wragg, Daniel D. A. Clarke, Gregory S. J. Armstrong +3
We observe the generation of high harmonics in the plane perpendicular to the driving laser polarization and show that these are driven by the spin-orbit interaction. Using R-Matri…
Modeling tomographic measurements of photoelectron vortices in counter-rotating circularly polarized laser pulses
G. S. J. Armstrong, D. D. A. Clarke, J. Benda +3
Recent experiments [D. Pengel, S. Kerbstadt, L. Englert, T. Bayer, and M. Wollenhaupt, \href{https://journals.aps.org/pra/abstract/10.1103/PhysRevA.96.043426}{{\PRA} {\bf 96} 04342…
Resolving Ultra-Fast Spin-Orbit Dynamics in Heavy Many-Electron Atoms
Jack Wragg, Daniel D. A. Clarke, Gregory S. J. Armstrong +3
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…
On the Cooper Minimum in Singly ionized and Neutral Argon
O. Hassouneh, N. B. Tyndall, J. Wragg +2
We present an analysis of the appearance of the Cooper Minimum in singly ionized argon in both the photoionization cross-section (PICS) and high-harmonic generation (HHG) spectrum.…