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Gregory Armstrong

Observed names: Armstrong, Gregory, Armstrong, Gregory S. J., G Armstrong, G S J Armstrong, G. S. J. Armstrong, G.S.J. Armstrong, Gregory S J Armstrong, Gregory S. J. Armstrong, Gregory S.J. Armstrong, Gregory S. J. Armstrong
ORCID: 0000-0001-5949-2626
Observed ORCID: 0000-0001-5949-2626
OpenAlex ID: A5069351920
RMT: R-matrix with time-dependence. Solving the semi-relativistic, time-dependent Schrödinger equation for general, multielectron atoms and molecules in intense, ultrashort, arbitrarily polarized laser pulses
2019 · Andrew C. Brown, Gregory S.J. Armstrong, et al. · Computer Physics Communications · 99
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Atomic partial wave meter by attosecond coincidence metrology
2022 · Wenyu Jiang, Gregory S. J. Armstrong, et al. · Nature Communications · 44
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R -matrix-with-time-dependence theory for ultrafast atomic processes in arbitrary light fields
2018 · D. D. A. Clarke, G. S. J. Armstrong, et al. · Physical Review A · 44
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Light element opacities from ATOMIC
2013 · J. Colgan, D.P. Kilcrease, et al. · High Energy Density Physics · 42
Atomic structure considerations for the low-temperature opacity of Sn
2017 · J. Colgan, D.P. Kilcrease, et al. · High Energy Density Physics · 34
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Dialogue on analytical and ab initio methods in attoscience
2021 · Gregory S. J. Armstrong, Margarita A. Khokhlova, et al. · The European Physical Journal D · 29
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Perturbative and nonperturbative photoionization of H2 and H2O using the molecular R -matrix-with-time method
2020 · J. Benda, J. D. Gorfinkiel, et al. · Physical Review A · 29
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Testing the reliability of non-LTE spectroscopic models for complex ions
2013 · Stephanie Hansen, G.S.J. Armstrong, et al. · High Energy Density Physics · 26
Single and double photoionization of Be and Mg
2013 · M S Pindzola, C P Ballance, et al. · Journal of Physics B Atomic Molecular and Optical Physics · 22
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Modeling tomographic measurements of photoelectron vortices in counter-rotating circularly polarized laser pulses
2019 · G. S. J. Armstrong, D. D. A. Clarke, et al. · Physical Review A · 20
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From the UV to the static-field limit: rates and scaling laws of intense-field ionization of helium
2009 · J S Parker, G S J Armstrong, et al. · Journal of Physics B Atomic Molecular and Optical Physics · 19
Resolving Ultrafast Spin-Orbit Dynamics in Heavy Many-Electron Atoms
2019 · Jack Wragg, Daniel D. A. Clarke, et al. · Physical Review Letters · 16
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Electron rotational asymmetry in strong-field photodetachment from F− by circularly polarized laser pulses
2019 · G. S. J. Armstrong, D. D. A. Clarke, et al. · Physical Review A · 16
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Ab initio calculation of the non-relativistic free–free Gaunt factor incorporating plasma screening
2013 · G.S.J. Armstrong, J. Colgan, et al. · High Energy Density Physics · 16
Double-electron above-threshold ionization resonances as interference phenomena
2011 · G S J Armstrong, J S Parker, et al. · New Journal of Physics · 14
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Electron correlation and short-range dynamics in attosecond angular streaking
2020 · G. S. J. Armstrong, D. D. A. Clarke, et al. · Physical Review A · 12
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Theoretical and experimental (e,2e) study of electron-impact ionization of laser-aligned Mg atoms
2014 · Sadek Amami, Andrew Murray, et al. · Physical Review A · 11
Resolving Quantum Interference Black Box through Attosecond Photoionization Spectroscopy
2023 · Wenyu Jiang, Gregory S. J. Armstrong, et al. · Physical Review Letters · 9
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Enhancing spin polarization using ultrafast angular streaking
2021 · G. S. J. Armstrong, D. D. A. Clarke, et al. · Physical Review A · 8
Angular distributions for two-photon double ionization of lithium
2012 · G. S. J. Armstrong, J. Colgan · Physical Review A · 8
Erratum: Theoretical and experimental (e,2e) study of electron-impact ionization of laser-aligned Mg atoms [Phys. Rev. A 90, 062707 (2014)]
2015 · Sadek Amami, Andrew Murray, et al. · Physical Review A · 7
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Machine learning-based estimator for electron impact ionization fragmentation patterns
2024 · Kateryna M Lemishko, Gregory S J Armstrong, et al. · Journal of Physics D Applied Physics · 6
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Dissociation of Hydrofluorocarbon Molecules after Electron Impact in Plasma
2024 · Dmitry V. Makhov, Gregory Armstrong, et al. · The Journal of Physical Chemistry Letters · 6
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Extensions to the HELIUM code to handle intense X-ray light
2008 · L.R. Moore, J.S. Parker, et al. · Journal of Modern Optics · 6
Evidence for unnatural-parity contributions to electron-impact ionization of laser-aligned atoms
2015 · G. S. J. Armstrong, J. Colgan, et al. · Physical Review A · 5
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Works count: 62
Citation count: 566
H-index: 14
I10-index: 17
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