Projects per year
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 4s$^2$4p$^5$5s. The second pulse then excites 4s4p65s 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.
Original language | English |
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Article number | 163001 |
Pages (from-to) | 1 |
Journal | Physical Review Letters |
Volume | 123 |
DOIs | |
Publication status | Published - 15 Oct 2019 |
Keywords
- First-principles calculations
- atoms
- Spin-orbit coupling
- Single- and few-photon ionization & excitation
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Fingerprint
Dive into the research topics of 'Resolving Ultra-Fast Spin-Orbit Dynamics in Heavy Many-Electron Atoms'. Together they form a unique fingerprint.-
R1066TCP: UK Atomic, Molecular and Optical physics R-matrix consortium (UK AMOR)
Brown, A. (PI)
18/06/2019 → …
Project: Research
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R1725TCP: ARMouReD: Atomic R-matrix Method for Relativistic Dynamics
Van Der Hart, H. (PI), Ballance, C. (CoI) & Brown, A. (CoI)
08/02/2017 → 31/07/2020
Project: Research
Datasets
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Data for Resolving Ultra-Fast Spin-Orbit Dynamics in Heavy Many-Electron Atoms
Wragg, J. (Creator), Clarke, D. (Creator), Armstrong, G. (Creator), Brown, A. (Creator), Ballance, C. (Creator) & Van Der Hart, H. (Creator), Queen's University Belfast, 2019
DOI: 10.17034/660e22b1-4130-4a51-95c0-0781c6061f1d
Dataset
File
Student theses
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Ultrafast Atomic Dynamics in Arbitrary Light Fields
Clarke, D. (Author), Van Der Hart, H. (Supervisor) & Brown, A. (Supervisor), Jul 2020Student thesis: Doctoral Thesis › Doctor of Philosophy
File
Profiles
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Andrew Brown
- School of Mathematics and Physics - Research Software Engineer
- Centre for Light-Matter Interaction (CLMI)
Person: Research
Research output
- 13 Citations
- 1 Software
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The R-matrix with time dependence (RMT) code
Brown, A. (Developer), Van Der Hart, H. (Developer), Armstrong, G. (Developer), Wragg, J. (Developer), Clarke, D. (Developer), Gorfinkiel, J. (Developer), Benda, J. (Developer) & Masin, Z. (Developer), 11 Nov 2019Research output: Non-textual form › Software