Results 41 to 50 of about 133,829 (307)

Stimulated resonant inelastic X-ray scattering in a solid

open access: yesCommunications Physics, 2022
X-ray free electron lasers provide brilliant light with sufficient intensity to strongly drive and probe nonlinear X-ray-matter interactions. Here, spectroscopy of Co/Pd multilayers reveals a nearly one-million-fold enhancement of stimulated resonant ...
Daniel J. Higley   +22 more
doaj   +1 more source

Signatures of misalignment in x-ray cavities of cavity-based x-ray free-electron lasers

open access: yesPhysical Review Accelerators and Beams, 2022
Cavity-based x-ray free-electron lasers (CBXFEL) will allow the use of optical cavity feedback to support generation of fully coherent x-rays of high brilliance and stability by electrons in undulators.
Peng Qi, Yuri Shvyd’ko
doaj   +1 more source

High-brightness electron injectors for high-duty cycle X-ray free electron lasers

open access: yesFrontiers in Physics, 2023
The successful development in the last two decades of X-ray free electron lasers (FELs) with their revolutionary brightness performance has been tightly dependent on the parallel development of electron guns and injectors capable of providing the high ...
Fernando Sannibale
doaj   +1 more source

Dynamic structure elucidation of chemical reactivity by laser pulses and X-ray probes [PDF]

open access: yes, 2015
Visualising chemical reactions by X-ray methods is a tantalising prospect. New light sources provide the prospect for studying atomic, electronic and energy transfers accompanying chemical change by X-ray spectroscopy and inelastic scattering.
Bartlett, Stuart A.   +2 more
core   +1 more source

Laser assisted electron beam conditioning for free electron lasers

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2005
A new method for electron beam conditioning in free electron lasers is proposed. It uses the electron beam interaction with a laser light in two wiggler magnets separated by a strong-focusing channel.
A. A. Zholents
doaj   +1 more source

EUV and Hard X-ray Hartmann Wavefront Sensing for Optical Metrology, Alignment and Phase Imaging

open access: yesSensors, 2021
For more than 15 years, Imagine Optic have developed Extreme Ultra Violet (EUV) and X-ray Hartmann wavefront sensors for metrology and imaging applications. These sensors are compatible with a wide range of X-ray sources: from synchrotrons, Free Electron
Ombeline de La Rochefoucauld   +7 more
doaj   +1 more source

Photoelectron Diffraction Imaging of a Molecular Breakup Using an X-Ray Free-Electron Laser

open access: yesPhysical Review X, 2020
A central motivation for the development of x-ray free-electron lasers has been the prospect of time-resolved single-molecule imaging with atomic resolution.
Gregor Kastirke   +48 more
doaj   +1 more source

Enhanced harmonic generation in x-ray free-electron lasers

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2014
Harmonic generation becomes increasingly important as x-ray free-electron lasers push to shorter wavelengths. Recent studies have pointed to the possibility of enhancing harmonic generation by detuning the fundamental.
H. P. Freund   +2 more
doaj   +1 more source

Single-exposure X-ray phase imaging microscopy with a grating interferometer

open access: yesJournal of Synchrotron Radiation, 2022
The advent of hard X-ray free-electron lasers enables nanoscopic X-ray imaging with sub-picosecond temporal resolution. X-ray grating interferometry offers a phase-sensitive full-field imaging technique where the phase retrieval can be carried out from a
Andreas Wolf   +13 more
doaj   +1 more source

Imaging atom-clusters by hard x-ray free electron lasers [PDF]

open access: yes, 2003
The ingenious idea of single molecule imaging by hard x-ray Free Electron Laser (X-FEL) pulses was recently proposed by Neutze et al. [Nature,406,752(2000)].
  +10 more
core   +1 more source

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