Mettin, Robert

[["dc.bibliographiccitation.artnumber","3468"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Nature Communications"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Vaßholz, Malte"],["dc.contributor.author","Hoeppe, H. P."],["dc.contributor.author","Hagemann, Johannes"],["dc.contributor.author","Rosselló, J. M."],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Mettin, Robert"],["dc.contributor.author","Kurz, Thomas"],["dc.contributor.author","Schropp, A."],["dc.contributor.author","Seiboth, F."],["dc.contributor.author","Schroer, C. G."],["dc.contributor.author","Scholz, M."],["dc.contributor.author","Möller, J."],["dc.contributor.author","Hallmann, J."],["dc.contributor.author","Boesenberg, U."],["dc.contributor.author","Kim, C."],["dc.contributor.author","Zozulya, A."],["dc.contributor.author","Lu, W."],["dc.contributor.author","Shayduk, R."],["dc.contributor.author","Schaffer, R."],["dc.contributor.author","Madsen, A."],["dc.contributor.author","Salditt, Tim"],["dc.date.accessioned","2021-06-08T12:44:14Z"],["dc.date.available","2021-06-08T12:44:14Z"],["dc.date.issued","2021-06-08"],["dc.description.abstract","Cavitation bubbles can be seeded from a plasma following optical breakdown, by focusing an intense laser in water. The fast dynamics are associated with extreme states of gas and liquid, especially in the nascent state. This offers a unique setting to probe water and water vapor far-from equilibrium. However, current optical techniques cannot quantify these early states due to contrast and resolution limitations. X-ray holography with single X-ray free-electron laser pulses has now enabled a quasi-instantaneous high resolution structural probe with contrast proportional to the electron density of the object. In this work, we demonstrate cone-beam holographic flash imaging of laser-induced cavitation bubbles in water with nanofocused X-ray free-electron laser pulses. We quantify the spatial and temporal pressure distribution of the shockwave surrounding the expanding cavitation bubble at time delays shortly after seeding and compare the results to numerical simulations."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1038/s41467-021-23664-1"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/87172"],["dc.relation.issn","2041-1723"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.rights","CC BY 4.0"],["dc.subject.gro","x-ray imaging"],["dc.title","Pump-probe X-ray holographic imaging of laser-induced cavitation bubbles with femtosecond FEL pulses"],["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","52"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Synchrotron Radiation"],["dc.bibliographiccitation.lastpage","63"],["dc.bibliographiccitation.volume","28"],["dc.contributor.author","Hagemann, Johannes"],["dc.contributor.author","Vaßholz, Malte"],["dc.contributor.author","Hoeppe, Hannes"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Rosselló, Juan M."],["dc.contributor.author","Mettin, Robert"],["dc.contributor.author","Seiboth, Frank"],["dc.contributor.author","Schropp, Andreas"],["dc.contributor.author","Möller, Johannes"],["dc.contributor.author","Hallmann, Jörg"],["dc.contributor.author","Kim, Chan"],["dc.contributor.author","Scholz, Markus"],["dc.contributor.author","Boesenberg, Ulrike"],["dc.contributor.author","Schaffer, Robert"],["dc.contributor.author","Zozulya, Alexey"],["dc.contributor.author","Lu, Wei"],["dc.contributor.author","Shayduk, Roman"],["dc.contributor.author","Madsen, Anders"],["dc.contributor.author","Schroer, Christian G."],["dc.contributor.author","Salditt, Tim"],["dc.date.accessioned","2021-04-14T08:30:07Z"],["dc.date.available","2021-04-14T08:30:07Z"],["dc.date.issued","2021"],["dc.description.abstract","X-ray free-electron lasers (XFELs) have opened up unprecedented opportunities\r\nfor time-resolved nano-scale imaging with X-rays. Near-field propagationbased\r\nimaging, and in particular near-field holography (NFH) in its highresolution\r\nimplementation in cone-beam geometry, can offer full-field views of a\r\nspecimen’s dynamics captured by single XFEL pulses. To exploit this capability,\r\nfor example in optical-pump/X-ray-probe imaging schemes, the stochastic\r\nnature of the self-amplified spontaneous emission pulses, i.e. the dynamics of the\r\nbeam itself, presents a major challenge. In this work, a concept is presented to\r\naddress the fluctuating illumination wavefronts by sampling the configuration\r\nspace of SASE pulses before an actual recording, followed by a principal\r\ncomponent analysis. This scheme is implemented at the MID (Materials Imaging\r\nand Dynamics) instrument of the European XFEL and time-resolved NFH\r\nis performed using aberration-corrected nano-focusing compound refractive\r\nlenses. Specifically, the dynamics of a micro-fluidic water-jet, which is commonly\r\nused as sample delivery system at XFELs, is imaged. The jet exhibits rich\r\ndynamics of droplet formation in the break-up regime. Moreover, pump–probe\r\nimaging is demonstrated using an infrared pulsed laser to induce cavitation and\r\nexplosion of the jet."],["dc.identifier.doi","10.1107/S160057752001557X"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83114"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1600-5775"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.rights","CC BY 4.0"],["dc.subject.gro","x-ray imaging"],["dc.title","Single-pulse phase-contrast imaging at free-electron lasers in the hard X-ray regime"],["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","987-994"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Synchrotron Radiation"],["dc.bibliographiccitation.volume","28"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Vaßholz, Malte"],["dc.contributor.author","Hoeppe, Hannes Paul"],["dc.contributor.author","Rosselló, Juan Manuel"],["dc.contributor.author","Mettin, Robert"],["dc.contributor.author","Hagemann, Johannes"],["dc.contributor.author","Möller, Johannes"],["dc.contributor.author","Hallmann, Jörg"],["dc.contributor.author","Scholz, Markus"],["dc.contributor.author","Schaffer, Robert"],["dc.contributor.author","Boesenberg, Ulrike"],["dc.contributor.author","Kim, Chan"],["dc.contributor.author","Zozulya, Alexey"],["dc.contributor.author","Lu, Wei"],["dc.contributor.author","Shayduk, Roman"],["dc.contributor.author","Madsen, Anders"],["dc.contributor.author","Salditt, Tim"],["dc.date.accessioned","2021-05-07T07:22:19Z"],["dc.date.available","2021-05-07T07:22:19Z"],["dc.date.issued","2021-05-01"],["dc.description.abstract","Single-pulse holographic imaging at XFEL sources with 1012 photons delivered in pulses shorter than 100 fs reveal new quantitative insights into fast phenomena. Here, a timing and synchronization scheme for stroboscopic imaging and quantitative analysis of fast phenomena on time scales (sub-ns) and length-scales (≲100 nm) inaccessible by visible light is reported. A fully electronic delay-and-trigger system has been implemented at the MID station at the European XFEL, and applied to the study of emerging laser-driven cavitation bubbles in water. Synchronization and timing precision have been characterized to be better than 1 ns."],["dc.identifier.doi","10.1107/S1600577521003052"],["dc.identifier.pmid","33950007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/84669"],["dc.language.iso","en"],["dc.relation.eissn","1600-5775"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.rights","CC BY 4.0"],["dc.subject.gro","x-ray imaging"],["dc.title","Nanosecond timing and synchronization scheme for holographic pump-probe studies at the MID instrument at European XFEL"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]