Monitoring nonadiabatic avoided crossing dynamics in molecules by ultrafast X-ray diffraction [PDF]
Structural Dynamics, 2017 We examine time-resolved X-ray diffraction from molecules in the gas phase which undergo nonadiabatic avoided-crossing dynamics involving strongly coupled electrons and nuclei.
Markus Kowalewski +2 more
doaj +12 more sources
Observation of a single protein by ultrafast X-ray diffraction [PDF]
Light: Science & ApplicationsThe 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.
Tomas Ekeberg +44 more
doaj +13 more sources
Ultrafast lattice response of photoexcited thin films studied by X-ray diffraction [PDF]
Structural Dynamics, 2014 Using ultrafast X-ray diffraction, we study the coherent picosecond lattice dynamics of photoexcited thin films in the two limiting cases, where the photoinduced stress profile decays on a length scale larger and smaller than the film thickness. We solve
Daniel Schick +6 more
doaj +9 more sources
Phonon driven charge dynamics in polycrystalline acetylsalicylic acid mapped by ultrafast x-ray diffraction [PDF]
Structural Dynamics, 2019 The coupled lattice and charge dynamics induced by phonon excitation in polycrystalline acetylsalicylic acid (aspirin) are mapped by femtosecond x-ray powder diffraction.
Christoph Hauf +4 more
doaj +5 more sources
Low-temperature nanoscale heat transport in a gadolinium iron garnet heterostructure probed by ultrafast x-ray diffraction [PDF]
Structural Dynamics, 2022 Time-resolved x-ray diffraction has been used to measure the low-temperature thermal transport properties of a Pt/Gd3Fe5O12//Gd3Ga5O12 metal/oxide heterostructure relevant to applications in spin caloritronics.
Deepankar Sri Gyan +13 more
doaj +3 more sources
Non-linear enhancement of ultrafast X-ray diffraction through transient resonances [PDF]
Nature CommunicationsDiffraction-before-destruction imaging with ultrashort X-ray pulses can visualize non-equilibrium processes, such as chemical reactions, with sub-femtosecond precision in the native environment.
Stephan Kuschel +17 more
doaj +6 more sources
Comparison of ultrafast electron and X-ray diffraction – A computational study [PDF]
Chemical Physics Letters, 2017 We compare ultrafast electron and X-ray diffraction using quantum molecular dynamics simulations in photoexcited ethylene. The simulations of ethylene are done using the ab-initio multiconfigurational Ehrenfest (AI-MCE) approach, with electronic structure calculations at the SA3-CASSCF(2,2)/cc-ppVDZ level. The diffraction signal is calculated using the
Minas Stefanou +2 more
exaly +4 more sources
Ultrafast x-ray diffraction of laser-irradiated crystals [PDF]
AIP Conference Proceedings, 1997 An apparatus has been developed for measuring time-dependent x-ray diffraction. X-ray pulses from an Advanced Light Source bend magnet are diffracted by a sagittally-focusing Si (111) crystal and then by a sample crystal, presently InSb (111).
Bucksbaum, Philip H. +12 more
core +10 more sources
Structural Dynamics, 2018 Ultrafast lattice deformation of tens to hundreds of nanometer thick metallic crystals, after femtosecond laser excitation, was measured directly using 8.04 keV subpicosecond x-ray and 59 keV femtosecond electron pulses.
Runze Li +5 more
doaj +2 more sources
Fundamental Limits on Spatial Resolution in Ultrafast X-ray Diffraction
Applied Sciences, 2017 X-ray Free-Electron Lasers have made it possible to record time-sequences of diffraction images to determine changes in molecular geometry during ultrafast photochemical processes.
Adam Kirrander, Peter M. Weber
doaj +3 more sources