Results 51 to 60 of about 6,897 (199)
Improvement of photon energy at X-ray free-electron lasers using plasma-based afterburner
Matter and Radiation at ExtremesX-ray free-electron lasers (XFELs) can generate bright X-ray pulses with short durations and narrow bandwidths, leading to extensive applications in many disciplines such as biology, materials science, and ultrafast science.
Letian Liu +13 more
doaj +1 more source
Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a Van der Waals Antiferromagnet
Advanced Materials, EarlyView.Magnetically coupled acoustic phonon modes (f1, f2, f3) are captured by ultrafast X‐ray diffraction in a prototypical van der Waals antiferromagnet FePS3, including their atomic displacement vectors (u) and the acoustic propagation wave vectors (k). Notably, the atomic displacement vector and amplitude of these modes, represented by the direction and ...
Faran Zhou +24 more
wiley +1 more source
Advanced Science, EarlyView.Cryo‐EM analysis reveals an asymmetric MMOH–MMOB complex with distinct protomers, where MMOB binding triggers structural rearrangements from the surface to the active site. This conformational asymmetry shortens the Fe···Fe distance to 2.7 Å in one protomer, forming a geometry suitable for O2 activation and supporting a sequential catalytic mechanism ...
Yunha Hwang +9 more
wiley +1 more source
Biological single-particle imaging using XFELs – towards the next resolution revolution
IUCrJ, 2018 Better injectors resulting from careful iterative optimization used at high repetition XFELs in combination with better detectors and further developed algorithms might, in the not so distant future, result in a ‘resolution revolution’ in SPI, enabling ...
D. Oberthür
semanticscholar +1 more source
IUCrJ, 2023 Many coherent imaging applications that utilize ultrafast X-ray free-electron laser (XFEL) radiation pulses are highly sensitive to fluctuations in the shot-to-shot statistical properties of the source.
Trey W. Guest +5 more
doaj +1 more source
, 2012 X-ray radiation is one of the most efficient tools to explore the properties of matter in multidisciplinary domains. Over the past fifty years three generations of synchrotrons have been developed delivering x-ray beams with always shorter wavelength and higher brightness to a rapidly growing users community.
d’Humières, Emmanuel +1 more
openaire +4 more sources
Anomalous Magnetization Dynamics After Dual Optical Excitation
Advanced Physics Research, EarlyView.We demonstrate that dual‐pump femtosecond excitation in copper leads to a pronounced, non‐additive change in spin and orbital relaxation dynamics compared to single‐pulse excitation. Time‐resolved magneto‐optical Kerr effect measurements reveal a 2.5× increase in angular momentum decay time, highlighting a new route to ultrafast control of electronic ...
Sergii Parchenko +2 more
wiley +1 more source
European XFEL Commissioing Experience
, 2017 2017 TESLA Technology Collaboration, TTC 2017, East Lansing, DESY, USA, 20 Feb 2017 - 24 Feb ...
Weise, Hans, Decking, Winfried
openaire +2 more sources
Journal of Synchrotron Radiation, EarlyView.We successfully achieved simultaneous lasing of 7.48 keV Ni Kα1 and 8.05 keV Cu Kα1 emissions using an intense X‐ray free‐electron laser (XFEL) pulse. This achievement – the realization of simultaneous two‐color X‐ray lasing using a single‐color XFEL pulse – is expected to advance the development of X‐ray lasers and their applications.We report the ...
Yuichi Inubushi +6 more
wiley +1 more source
IUCrJ, 2020 An improved analysis for single-particle imaging (SPI) experiments, using the limited data, is presented here. Results are based on a study of bacteriophage PR772 performed at the Atomic, Molecular and Optical Science instrument at the Linac Coherent ...
Dameli Assalauova +27 more
doaj +1 more source