Ultrafast X-ray diffraction probe of terahertz field-driven soft mode dynamics in SrTiO3 [PDF]
Structural Dynamics, 2017 We use ultrafast X-ray pulses to characterize the lattice response of SrTiO3 when driven by strong terahertz fields. We observe transient changes in the diffraction intensity with a delayed onset with respect to the driving field ...
M. Kozina +8 more
doaj +4 more sources
A modular table-top setup for ultrafast x-ray diffraction [PDF]
Review of Scientific Instruments, 2023 We present a table-top setup for femtosecond time-resolved x-ray diffraction based on a Cu Kα (8.05 keV) laser driven plasma x-ray source. Due to its modular design, it provides high accessibility to its individual components (e.g., x-ray optics and sample environment). The Kα-yield of the source is optimized using a pre-pulse scheme.
Wei Lu +2 more
exaly +5 more sources
Advantages of Using Hard X-ray Photons for Ultrafast Diffraction Measurements [PDF]
Photonics, 2023 We present a comparative theoretical study of silicon crystals irradiated with X-ray free-electron laser pulses, using hard X-ray photons of various energies.
Vladimir Lipp, Ichiro Inoue, Beata Ziaja
doaj +2 more sources
Enhanced ultrafast X-ray diffraction by transient resonances [PDF]
, 2022 Diffraction-before-destruction imaging with single ultrashort X-ray pulses has the potential to visualise non-equilibrium processes, such as chemical reactions, at the nanoscale with sub-femtosecond resolution in the native environment without the need of crystallization.
Kuschel, Stephan +17 more
openaire +3 more sources
Observation of a single protein by ultrafast X-ray diffraction [PDF]
, 2022 Abstract The idea of using ultrashort X-ray pulses to obtain images of single proteins frozen in time has fascinated and inspired many. It was one of the arguments for building X-ray free-electron lasers. According to theory 1 , the extremely intense pulses provide sufficient signal
Ekeberg, Tomas +43 more
openaire +3 more sources
Soft-mode driven polarity reversal in ferroelectrics mapped by ultrafast x-ray diffraction [PDF]
Structural Dynamics, 2018 Quantum theory has linked microscopic currents and macroscopic polarizations of ferroelectrics, but the interplay of lattice excitations and charge dynamics on atomic length and time scales is an open problem.
Christoph Hauf +4 more
doaj +2 more sources
Anharmonic Lattice Dynamics in Germanium Measured with Ultrafast X-Ray Diffraction
Physical Review Letters, 2000 Damping of impulsively generated coherent acoustic oscillations in a femtosecond laser-heated thin germanium film is measured as a function of fluence by means of ultrafast x-ray diffraction. By simultaneously measuring picosecond strain dynamics in the film and in the unexcited silicon substrate, we separate anharmonic damping from acoustic ...
Cavalleri, Andrea +11 more
openaire +7 more sources
Novel Ultrafast Molecular Imaging Based on the Combination of X-ray and Electron Diffraction [PDF]
The Journal of Physical Chemistry A, 2023 Recent development of X-ray free-electron lasers and megaelectronvolt radio-frequency electron guns have made ultrafast X-ray and electron diffraction measurements possible, thereby capturing chemical dynamics with atomic-spatial and femtosecond-temporal resolutions. We present a unified formulation of standard homodyne-detected and heterodyne-detected
Haiwang Yong +2 more
openaire +6 more sources
Ultrafast energy-dispersive soft-x-ray diffraction in the water window with a laser-driven source
Structural DynamicsTime-resolved soft-x-ray-diffraction experiments give access to microscopic processes in a broad range of solid-state materials by probing ultrafast dynamics of ordering phenomena.
Jasmin Jarecki +5 more
doaj +2 more sources
Melting and refreezing of zirconium observed using ultrafast x-ray diffraction [PDF]
Physical Review Research, 2020 Ultrafast (130-fs) x-ray diffraction at the Linac Coherent Light Source has been applied to observe shock melting, which is driven by a rapid (120-ps) laser pulse impinging on a thin (few micrometers) bilayer of aluminum/zirconium.
Harry B. Radousky +18 more
doaj +2 more sources