Marcus Agåker

A new compact soft x-ray spectrometer for resonant inelastic x-ray scattering studies at PETRA III

Yin, Z.; Peters, H. B.; Hahn, U.; Agåker, Marcus et al.

Part of Review of Scientific Instruments, 2015

• DOI for A new compact soft x-ray spectrometer for resonant inelastic x-ray scattering studies at PETRA III

An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports

Englund, Carl-Johan; Agåker, Marcus; Fredriksson, Pierre; Olsson, Anders et al.

Part of Review of Scientific Instruments, 2015

• DOI for An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports

Measuring the temporal coherence of a high harmonic generation setup employing a Fourier transform spectrometer for the VUV/XUV

Terschlüsen, Joachim Andreas; Agåker, Marcus; Svanqvist, Mattias; Plogmaker, Stefan et al.

Part of Nuclear Instruments and Methods in Physics Research Section A, p. 84-88, 2014

• DOI for Measuring the temporal coherence of a high harmonic generation setup employing a Fourier transform spectrometer for the VUV/XUV
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Spectroscopy in the vacuum-ultraviolet

Agåker, Marcus; Andersson, Joakim; Englund, Carl-Johan; Rausch, J. et al.

Part of Nature Photonics, p. 248-248, 2011

• DOI for Spectroscopy in the vacuum-ultraviolet

Novel instruments for ultra-soft X-ray emission spectroscopy

Agåker, Marcus; Andersson, J; Englund, C.-J.; Olsson, Anders et al.

Part of Nuclear Instruments and Methods in Physics Research Section A, p. 213-219, 2009

• DOI for Novel instruments for ultra-soft X-ray emission spectroscopy

High gas-pressure apparatus for nonlinear X-ray propagation and reshaping via stimulated X-ray Raman scattering

Magunia, Alexander; Rebholz, Marc; Mazza, Tommaso; De Fanis, Alberto et al.

Part of Scientific Reports, 2025

• DOI for High gas-pressure apparatus for nonlinear X-ray propagation and reshaping via stimulated X-ray Raman scattering
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Interference between One-and Two-Electron Channels in Resonant Inelastic X-Ray Scattering

Söderström, Johan; Agåker, Marcus; Liu, Ji-Cai; Tokushima, Takashi et al.

Part of Physical Review Letters, 2025

• DOI for Interference between One-and Two-Electron Channels in Resonant Inelastic X-Ray Scattering
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Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering

Son, Sang-Kil; Baumann, Thomas M.; Pedersen, Jacob; Budewig, Laura et al.

Part of Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2025

• DOI for Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering
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Non-local X-ray intermolecular radiative decay probes solvation shell of ions in water

Söderström, Johan; Cornetta, Lucas M.; Ekholm, Victor; Carravetta, Vincenzo et al.

Part of Nature Communications, 2025

• DOI for Non-local X-ray intermolecular radiative decay probes solvation shell of ions in water
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The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline

Agåker, Marcus; Englund, Carl-Johan; Ekholm, Victor; Kjellsson, Ludvig et al.

Part of Journal of Synchrotron Radiation, p. 1328-1345, 2025

• DOI for The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline
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High gas-pressure apparatus for nonlinear X-ray propagation and reshaping via stimulated X-ray Raman scattering

Magunia, Alexander; Rebholz, Marc; Mazza, Tommaso; De Fanis, Alberto et al.

Part of Scientific Reports, 2025

• DOI for High gas-pressure apparatus for nonlinear X-ray propagation and reshaping via stimulated X-ray Raman scattering
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Interference between One-and Two-Electron Channels in Resonant Inelastic X-Ray Scattering

Söderström, Johan; Agåker, Marcus; Liu, Ji-Cai; Tokushima, Takashi et al.

Part of Physical Review Letters, 2025

• DOI for Interference between One-and Two-Electron Channels in Resonant Inelastic X-Ray Scattering
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Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering

Son, Sang-Kil; Baumann, Thomas M.; Pedersen, Jacob; Budewig, Laura et al.

Part of Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2025

• DOI for Emergence of pseudoresonance in high-intensity resonant inelastic x-ray scattering
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Non-local X-ray intermolecular radiative decay probes solvation shell of ions in water

Söderström, Johan; Cornetta, Lucas M.; Ekholm, Victor; Carravetta, Vincenzo et al.

Part of Nature Communications, 2025

• DOI for Non-local X-ray intermolecular radiative decay probes solvation shell of ions in water
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The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline

Agåker, Marcus; Englund, Carl-Johan; Ekholm, Victor; Kjellsson, Ludvig et al.

Part of Journal of Synchrotron Radiation, p. 1328-1345, 2025

• DOI for The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline
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Super-resolution stimulated X-ray Raman spectroscopy

Li, Kai; Ott, Christian; Agåker, Marcus; Ho, Phay J. et al.

Part of Nature, p. 662-668, 2025

• DOI for Super-resolution stimulated X-ray Raman spectroscopy
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Neutral Sulfur Atom Formation in Decay of Deep Core Holes in SF6

Travnikova, Oksana; Trinter, Florian; Agåker, Marcus; Visentin, Giorgio et al.

Part of Physical Review Letters, 2025

• DOI for Neutral Sulfur Atom Formation in Decay of Deep Core Holes in SF6
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X-ray-absorption spectrum of O⁺2

Cornetta, Lucas M.; Kjellsson, Ludvig; Couto, Rafael C.; Ågren, Hans et al.

Part of Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2025

• DOI for X-ray-absorption spectrum of O⁺2

Transmission spectroscopy of CF₄ molecules in intense x-ray fields

Jin, Rui; Fouda, Adam; Magunia, Alexander; Nam, Yeonsig et al.

Part of Physical Review A: covering atomic, molecular, and optical physics and quantum information, 2025

• DOI for Transmission spectroscopy of CF₄ molecules in intense x-ray fields
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Automated spectrometer alignment via machine learning

Feuer-Forson, Peter; Hartmann, Gregor; Mitzner, Rolf; Baumgaertel, Peter et al.

Part of Journal of Synchrotron Radiation, p. 698-705, 2024

• DOI for Automated spectrometer alignment via machine learning
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A 1D imaging soft X-ray spectrometer for the small quantum systems instrument at the European XFEL

Agåker, Marcus; Söderström, Johan; Baumann, Thomas M.; Englund, Carl-Johan et al.

Part of Journal of Synchrotron Radiation, p. 1264-1275, 2024

• DOI for A 1D imaging soft X-ray spectrometer for the small quantum systems instrument at the European XFEL
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Parity violation in resonant inelastic soft x-ray scattering at entangled core holes

Söderström, Johan; Ghosh, Anirudha; Kjellsson, Ludvig; Ekholm, Victor et al.

Part of Science Advances, 2024

• DOI for Parity violation in resonant inelastic soft x-ray scattering at entangled core holes
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Transient absorption of warm dense matter created by an X-ray free-electron laser

Mercadier, Laurent; Benediktovitch, Andrei; Krusic, Spela; Kas, Joshua J. et al.

Part of Nature Physics, p. 1564-1569, 2024

• DOI for Transient absorption of warm dense matter created by an X-ray free-electron laser
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Magnetic circular dichroism in the dd excitation in the van der Waals magnet CrI3 probed by resonant inelastic x-ray scattering

Ghosh, Anirudha; Jönsson, H. Johan M.; Mukkattukavil, D. John; Kvashnin, Yaroslav et al.

Part of Physical Review B, 2023

• DOI for Magnetic circular dichroism in the dd excitation in the van der Waals magnet CrI3 probed by resonant inelastic x-ray scattering
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An ultra-high-stability four-axis ultra-high-vacuum sample manipulator

Agåker, Marcus; Englund, Carl-Johan; Sjöblom, Peter; Wassdahl, Nial et al.

Part of Journal of Synchrotron Radiation, p. 1059-1068, 2021

• DOI for An ultra-high-stability four-axis ultra-high-vacuum sample manipulator
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Correlation-Driven Transient Hole Dynamics Resolved in Space and Time in the Isopropanol Molecule

Barillot, T.; Alexander, O.; Cooper, B.; Driver, T. et al.

Part of Physical Review X, 2021

• DOI for Correlation-Driven Transient Hole Dynamics Resolved in Space and Time in the Isopropanol Molecule
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Two-dimensional correlation analysis for x-ray photoelectron spectroscopy

Li, S.; Driver, T.; Al Haddad, A.; Champenois, E. G. et al.

Part of Journal of Physics B, 2021

• DOI for Two-dimensional correlation analysis for x-ray photoelectron spectroscopy

Resonant inelastic x-ray scattering at the N₂ π*-resonance: Lifetime-vibrational interference, radiative electron rearrangement, and wave-function imaging

Kjellsson, Ludvig; Ekholm, Victor; Agåker, Marcus; Såthe, Conny et al.

Part of Physical Review A. Atomic, Molecular, and Optical Physics, 2021

• DOI for Resonant inelastic x-ray scattering at the N₂ π*-resonance: Lifetime-vibrational interference, radiative electron rearrangement, and wave-function imaging
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A five-axis parallel kinematic mirror unit for soft X-ray beamlines at MAX IV

Agåker, Marcus; Mueller, Frieder; Jensen, Brian Norsk; Åhnberg, Karl et al.

Part of Journal of Synchrotron Radiation, p. 262-271, 2020

• DOI for A five-axis parallel kinematic mirror unit for soft X-ray beamlines at MAX IV
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Orbital dynamics during an ultrafast insulator to metal transition

Parchenko, Sergii; Paris, Eugenio; McNally, Daniel; Abreu, Elsa et al.

Part of Physical Review Research, 2020

• DOI for Orbital dynamics during an ultrafast insulator to metal transition
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Photon-recoil imaging: Expanding the view of nonlinear x-ray physics

Eichmann, U.; Rottke, H.; Meise, S.; Rubensson, Jan-Erik et al.

Part of Science, p. 1630-1633, 2020

• DOI for Photon-recoil imaging: Expanding the view of nonlinear x-ray physics

The SPECIES beamline at the MAX IV Laboratory: a facility for soft X-ray RIXS and APXPS

Urpelainen, Samuli; Sathe, Conny; Grizolli, Walan; Agåker, Marcus et al.

Part of Journal of Synchrotron Radiation, p. 344-353, 2017

• DOI for The SPECIES beamline at the MAX IV Laboratory: a facility for soft X-ray RIXS and APXPS
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Accurate prediction of X-ray pulse properties from a free-electron laser using machine learning

Sanchez-Gonzalez, A.; Micaelli, P.; Olivier, C.; Barillot, T. R. et al.

Part of Nature Communications, 2017

• DOI for Accurate prediction of X-ray pulse properties from a free-electron laser using machine learning
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Stimulated X-ray Raman scattering - a critical assessment of the building block of nonlinear X-ray spectroscopy

Kimberg, Victor; Sanchez-Gonzalez, Alvaro; Mercadier, Laurent; Weninger, Clemens et al.

Part of Faraday discussions, p. 305-324, 2016

• DOI for Stimulated X-ray Raman scattering - a critical assessment of the building block of nonlinear X-ray spectroscopy
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Auger Electron and Photoabsorption Spectra of Glycine in the Vicinity of the Oxygen K-edge Measured with an X-FEL

Sanchez-Gonzalez, A.; Barillot, T. R.; Squibb, R. J.; Kolorenc, P. et al.

Part of Journal of Physics B, 2015

• DOI for Auger Electron and Photoabsorption Spectra of Glycine in the Vicinity of the Oxygen K-edge Measured with an X-FEL

A new compact soft x-ray spectrometer for resonant inelastic x-ray scattering studies at PETRA III

Yin, Z.; Peters, H. B.; Hahn, U.; Agåker, Marcus et al.

Part of Review of Scientific Instruments, 2015

• DOI for A new compact soft x-ray spectrometer for resonant inelastic x-ray scattering studies at PETRA III

An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports

Englund, Carl-Johan; Agåker, Marcus; Fredriksson, Pierre; Olsson, Anders et al.

Part of Review of Scientific Instruments, 2015

• DOI for An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports

Measuring the temporal coherence of a high harmonic generation setup employing a Fourier transform spectrometer for the VUV/XUV

Terschlüsen, Joachim Andreas; Agåker, Marcus; Svanqvist, Mattias; Plogmaker, Stefan et al.

Part of Nuclear Instruments and Methods in Physics Research Section A, p. 84-88, 2014

• DOI for Measuring the temporal coherence of a high harmonic generation setup employing a Fourier transform spectrometer for the VUV/XUV
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The electronic structure of perfluorodecalin studied by soft X-ray spectroscopy and electronic structure calculations

Brandenburg, T; Agåker, Marcus; Atak, K; Pflüger, M et al.

Part of Physical Chemistry, Chemical Physics - PCCP, p. 23379-23385, 2014

• DOI for The electronic structure of perfluorodecalin studied by soft X-ray spectroscopy and electronic structure calculations

Spectroscopy in the vacuum-ultraviolet

Agåker, Marcus; Andersson, Joakim; Englund, J.C.; Rausch, Joachim et al.

Part of Nature Photonics, p. 248, 2011

Spectroscopy in the vacuum-ultraviolet

Agåker, Marcus; Andersson, Joakim; Englund, Carl-Johan; Rausch, J. et al.

Part of Nature Photonics, p. 248-248, 2011

• DOI for Spectroscopy in the vacuum-ultraviolet

Novel instruments for ultra-soft X-ray emission spectroscopy

Agåker, Marcus; Andersson, J; Englund, C.-J.; Olsson, Anders et al.

Part of Nuclear Instruments and Methods in Physics Research Section A, p. 213-219, 2009

• DOI for Novel instruments for ultra-soft X-ray emission spectroscopy

Stationary and dispersive features in resonant inelastic soft X-ray scattering at the Ge 3p resonances

Glover, C.J.; Schmitt, T; Mattesini, M; Adell, M et al.

Part of Journal of Electron Spectroscopy and Related Phenomena, p. 103-107, 2009

• DOI for Stationary and dispersive features in resonant inelastic soft X-ray scattering at the Ge 3p resonances

Radiative decay spectra of selected doubly excited states in helium

Söderström, Johan; Agåker, Marcus; Zimina, Anna; Feifel, Raimund et al.

Part of Physical Review A. Atomic, Molecular, and Optical Physics, 2008

• DOI for Radiative decay spectra of selected doubly excited states in helium

Double Core Excitations in Lithium Halides

Agåker, Marcus; Rubensson, Jan-Erik

Part of Physical Review B. Condensed Matter and Materials Physics, 2007

• DOI for Double Core Excitations in Lithium Halides

Oxygen K Edge X-ray-Emission-Threshold-Electron Coincidence Spectrum of CO2

Söderström, Johan; Agåker, Marcus; Richter, Robert; Alagia, Michele et al.

Part of Physical Review A. Atomic, Molecular, and Optical Physics, 2007

• DOI for Oxygen K Edge X-ray-Emission-Threshold-Electron Coincidence Spectrum of CO2

Magnetic-field induced enhancement in the fluorescence yield spectrum of doubly excited states in helium

Ström, Magnus; Såthe, Conny; Agåker, Marcus; Söderström, Johan et al.

Part of Physical Review Letters, p. 253002, 2006

• DOI for Magnetic-field induced enhancement in the fluorescence yield spectrum of doubly excited states in helium

Double Excitations of Helium in Weak Static Electric Fields

Såthe, Conny; Ström, Magnus; Agåker, Marcus; Söderström, Johan et al.

Part of Physical Review Letters, 2006

• DOI for Double Excitations of Helium in Weak Static Electric Fields

Resonant inelastic soft x-ray scattering at double core excitations in solid LiCl

Agåker, Marcus; Käämbre, Tanel; Glover, Chris; Schmitt, Thorsten et al.

Part of Physical Review B. Condensed Matter and Materials Physics, 2006

• DOI for Resonant inelastic soft x-ray scattering at double core excitations in solid LiCl

Magnetic-field induced enhancement in the fluorescence yield spectrum of doubly excited states in helium

Ström, Magnus; Såthe, Conny; Agåker, Marcus; Söderström, Johan et al.

Part of Physical Review Letters, p. 253002, 2006

Double Excitations of Helium in Weak Static Electric Fields

Såthe, Conny; Ström, Magnus; Agåker, Marcus; Söderström, Johan et al.

Part of Physical Review Letters, 2006

Double excitations of helium in weak static electric fields

Såthe, Conny; Ström, Magnus; Agåker, Marcus; Söderström, Johan et al.

Part of Physical Review Letters, 2006

X-ray yield and selectively excited X-ray emission spectra of atenolol and nadolol.

Söderström, Johan; Gråsjö, Johan; Kashtanov, S; Bergström, Christel et al.

Part of J Electr Spectr, p. 283-285, 2005

Core level ionization dynamics in small molecules studied by x-ray-emission threshold-electron coincidence spectroscopy

Alagia, Michele; Richter, Robert; Stranges, Stefano; Agåker, Marcus et al.

Part of Physical Review A, 2005

Core level ionization dynamics in small molecules studied by x-ray-emission threshold-electron coincidence spectroscopy

Alagia, M; Richter, R; Stranges, S; Agåker, Marcus et al.

Part of Physical Review A, 2005

Resonant Inelastic Soft X-ray Scattering at Hollow Lithium States in Solid LiCl

Agåker, Marcus; Söderström, Johan; Käämbre, Tanel; Glover, Chris et al.

Part of Physical Review Letters, 2004

X-ray-emission-threshold-electron coincidence spectroscopy

Söderström, Johan; Alagia, M; Richter, R; Stranges, S et al.

Part of Journal of Electron Spectroscopy and Related Phenomena, p. 161-170, 2004

Resonant inelastic soft X-ray scattering at hollow lithium states in solid LiCl

Agåker, Marcus; Söderström, Johan; Käämbre, Tanel; Glover, C et al.

Part of Physical Review Letters, 2004

Radiative and Relativistic Effects in the Decay of Highly Excited States in Helium

Gorczyca, Thomas; Rubensson, Jan-Erik; Såthe, Conny; Ström, Magnus et al.

Part of Physical Review Letters, p. 1202-1205, 2000

• DOI for Radiative and Relativistic Effects in the Decay of Highly Excited States in Helium

Radiative and relativistic effects in the decay of highly excited states in helium

Gorczyca, TW; Rubensson, JE; Sathe, C; Strom, M et al.

Part of PHYSICAL REVIEW LETTERS, p. 1202-1205, 2000

Quality and Renewal 2007: An Overall Evaluation of Research at Uppsala University 2006/2007

Nordgren, Joseph; Engwall, Lars; Gräslund, Ann-Sofie; Andersson, Per et al.

Uppsala universitet, 2007

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Double Excitations in Helium Atoms and Lithium Compounds

Agåker, Marcus

2006

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Stimulated X-Ray Raman Scattering with Free-Electron Laser Sources

Rohringer, N.; Kimberg, V.; Weninger, C.; Sanchez-Gonzalez, A. et al.

Part of X-RAY LASERS 2014, p. 201-207, 2016

• DOI for Stimulated X-Ray Raman Scattering with Free-Electron Laser Sources

Aqueous carbonate and bicarbonate ions studied by RIXS at the O K-edge

Ekholm, Victor; Gråsjö, Johan; Dong, Minjie; Björneholm, Olle et al.