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Gunter Brenner

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Recent Articles
11.
Bermudez Macias I, Dusterer S, Ivanov R, Liu J, Brenner G, Ronsch-Schulenburg J, et al.
Opt Express . 2021 Apr; 29(7):10491-10508. PMID: 33820183
Self-amplified spontaneous emission (SASE) pulses delivered by free electron lasers (FELs) are inherently fluctuating sources; each pulse varies in energy, duration, arrival time and spectral shape. Therefore, there is strong...
12.
Roth F, Borgwardt M, Wenthaus L, Mahl J, Palutke S, Brenner G, et al.
Nat Commun . 2021 Feb; 12(1):1196. PMID: 33608532
The ultrafast dynamics of photon-to-charge conversion in an organic light-harvesting system is studied by femtosecond time-resolved X-ray photoemission spectroscopy (TR-XPS) at the free-electron laser FLASH. This novel experimental technique provides...
13.
Engel R, Ekimova M, Miedema P, Kleine C, Ludwig J, Ochmann M, et al.
Struct Dyn . 2021 Feb; 8(1):014303. PMID: 33564694
X-ray absorption near-edge structure (XANES) spectroscopy provides element specificity and is a powerful experimental method to probe local unoccupied electronic structures. In the soft x-ray regime, it is especially well...
14.
Dendzik M, Xian R, Perfetto E, Sangalli D, Kutnyakhov D, Dong S, et al.
Phys Rev Lett . 2020 Sep; 125(9):096401. PMID: 32915590
Time-resolved soft-x-ray photoemission spectroscopy is used to simultaneously measure the ultrafast dynamics of core-level spectral functions and excited states upon excitation of excitons in WSe_{2}. We present a many-body approximation...
15.
Gerth C, Brenner G, Caselle M, Dusterer S, Haack D, Makowski D, et al.
J Synchrotron Radiat . 2019 Sep; 26(Pt 5):1514-1522. PMID: 31490139
Free-electron lasers (FELs) based on superconducting accelerator technology and storage ring facilities operate with bunch repetition rates in the MHz range, and the need arises for bunch-by-bunch electron and photon...
16.
Ruiz-Lopez M, Samoylova L, Brenner G, Mehrjoo M, Faatz B, Kuhlmann M, et al.
J Synchrotron Radiat . 2019 May; 26(Pt 3):899-905. PMID: 31074455
Wavefront-propagation simulations have been performed to complete the design of a monochromator beamline for FLASH2, the variable-gap undulator line at the soft X-ray free-electron laser in Hamburg (FLASH). Prior to...
17.
Brenner G, Dziarzhytski S, Miedema P, Rosner B, David C, Beye M
Opt Lett . 2019 May; 44(9):2157-2160. PMID: 31042172
A setup for dispersive X-ray absorption spectroscopy (XAS), employing a new reference scheme, has been implemented and tested at the soft X-ray free-electron laser (FEL) FLASH in Hamburg. A transmission...
18.
Biednov M, Brenner G, Dicke B, Weigelt H, Keitel B, Rubhausen M, et al.
J Synchrotron Radiat . 2019 Jan; 26(Pt 1):18-27. PMID: 30655464
An extreme-ultraviolet (XUV) double-stage Raman spectrometer is permanently installed as an experimental end-station at the PG1 beamline of the soft X-ray/XUV free-electron laser in Hamburg, FLASH. The monochromator stages are...
19.
Erk B, Muller J, Bomme C, Boll R, Brenner G, Chapman H, et al.
J Synchrotron Radiat . 2018 Sep; 25(Pt 5):1529-1540. PMID: 30179194
The non-monochromatic beamline BL1 at the FLASH free-electron laser facility at DESY was upgraded with new transport and focusing optics, and a new permanent end-station, CAMP, was installed. This multi-purpose...
20.
Dziarzhytski S, Siewert F, Sokolov A, Gwalt G, Seliger T, Rubhausen M, et al.
J Synchrotron Radiat . 2017 Dec; 25(Pt 1):138-144. PMID: 29271763
The extreme-ultraviolet double-stage imaging Raman spectrometer is a permanent experimental endstation at the plane-grating monochromator beamline branch PG1 at FLASH at DESY in Hamburg, Germany. This unique instrument covers the...