Jansen, Gijsbert Simon Matthijs

[["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","Physical Review. B"],["dc.bibliographiccitation.volume","102"],["dc.contributor.author","Keunecke, Marius"],["dc.contributor.author","Reutzel, Marcel"],["dc.contributor.author","Schmitt, David"],["dc.contributor.author","Osterkorn, Alexander"],["dc.contributor.author","Mishra, Tridev A."],["dc.contributor.author","Möller, Christina"],["dc.contributor.author","Bennecke, Wiebke"],["dc.contributor.author","Jansen, G. S. Matthijs"],["dc.contributor.author","Steil, Daniel"],["dc.contributor.author","Manmana, Salvatore R."],["dc.contributor.author","Steil, Sabine"],["dc.contributor.author","Kehrein, Stefan"],["dc.contributor.author","Mathias, Stefan"],["dc.creator.author","Marius Keunecke"],["dc.creator.author","Marcel Reutzel"],["dc.creator.author","David Schmitt"],["dc.creator.author","Alexander Osterkorn"],["dc.creator.author","Tridev A. Mishra"],["dc.creator.author","Christina Möller"],["dc.creator.author","Wiebke Bennecke"],["dc.creator.author","G. S. Matthijs Jansen"],["dc.creator.author","Daniel Steil"],["dc.creator.author","Salvatore R. Manmana"],["dc.creator.author","Sabine Steil"],["dc.creator.author","Stefan Kehrein"],["dc.creator.author","Stefan Mathias"],["dc.date.accessioned","2022-10-19T09:53:12Z"],["dc.date.available","2022-10-19T09:53:12Z"],["dc.date.issued","2020"],["dc.description.abstract","Light-engineering of quantum materials via electromagnetic dressing is considered an on-demand approach for tailoring electronic band dispersions and even inducing topological phase transitions. For probing such dressed bands, photoemission spectroscopy is an ideal tool, and we employ here a novel experiment based on ultrafast photoemission momentum microscopy. Using this setup, we measure the in-plane momentum-dependent intensity fingerprints of the electromagnetically-dressed sidebands from a Au(111) surface for s- and p-polarized infrared driving. We find that at metal surfaces, due to screening of the driving laser, the contribution from Floquet-Bloch bands is negligible, and the dressed bands are dominated by the laser-assisted photoelectric effect. Also, we find, from calculations, that in contrast to general expectations, s-polarized light can dress free-electron states at large photoelectron momenta. Our results show that the dielectric response of the material must carefully be taken into account when using photoemission for the identification of light-engineered electronic band structures."],["dc.identifier.doi","10.1103/PhysRevB.102.161403"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/116341"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area B | B03 Relaxation, Thermalisierung, Transport und Kondensation in hochangeregten Festkörpern"],["dc.relation","SFB 1073 | Topical Area B | B07 Elementare Schritte der Energiekonversion in stark angeregten korrelierten Materialien"],["dc.relation.eissn","2469-9969"],["dc.relation.issn","2469-9950"],["dc.rights","CC BY 4.0"],["dc.title","Electromagnetic dressing of the electron energy spectrum of Au(111) at high momenta"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","063012"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","New Journal of Physics"],["dc.bibliographiccitation.volume","22"],["dc.contributor.author","Jansen, G. S. M."],["dc.contributor.author","Keunecke, M."],["dc.contributor.author","Düvel, M."],["dc.contributor.author","Möller, C."],["dc.contributor.author","Schmitt, D."],["dc.contributor.author","Bennecke, W."],["dc.contributor.author","Kappert, F. J. S."],["dc.contributor.author","Steil, D."],["dc.contributor.author","Steil, S."],["dc.contributor.author","Luke, D. R."],["dc.contributor.author","Mathias, S."],["dc.creator.author","G S M Jansen"],["dc.creator.author","M Keunecke"],["dc.creator.author","M Düvel"],["dc.creator.author","C Möller"],["dc.creator.author","D Schmitt"],["dc.creator.author","W Bennecke"],["dc.creator.author","F J S Kappert"],["dc.creator.author","D Steil"],["dc.creator.author","D R Luke"],["dc.creator.author","S Steil"],["dc.creator.author","S Mathias"],["dc.date.accessioned","2022-10-19T09:52:43Z"],["dc.date.available","2022-10-19T09:52:43Z"],["dc.date.issued","2020"],["dc.description.abstract","We present energy-resolved photoelectron momentum maps for orbital tomography that have been collected with a novel and efficient time-of-flight momentum microscopy setup. This setup is combined with a 0.5 MHz table-top femtosecond extreme-ultraviolet light source, which enables unprecedented speed in data collection and paves the way towards time-resolved orbital imaging experiments in the future. Moreover, we take a significant step forward in the data analysis procedure for orbital imaging, and present a sparsity-driven approach to the required phase retrieval problem, which uses only the number of non-zero pixels in the orbital. Here, no knowledge of the object support is required, and the sparsity number can easily be determined from the measured data. Used in the relaxed averaged alternating reflections algorithm, this sparsity constraint enables fast and reliable phase retrieval for our experimental as well as noise-free and noisy simulated photoelectron momentum map data."],["dc.identifier.doi","10.1088/1367-2630/ab8aae"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/116337"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-393"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area B | B07 Elementare Schritte der Energiekonversion in stark angeregten korrelierten Materialien"],["dc.relation.eissn","1367-2630"],["dc.rights","CC BY 4.0"],["dc.title","Efficient orbital imaging based on ultrafast momentum microscopy and sparsity-driven phase retrieval"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]