Results 21 to 30 of about 10,368 (249)
Time and Angle-Resolved Time-of-Flight Electron Spectroscopy for Functional Materials Science
Molecules, 2022 Electron spectroscopy with the unprecedented transmission of angle-resolved time-of-flight detection, in combination with pulsed X-ray sources, brings new impetus to functional materials science.
Nomi Lucia Ada Nathalie Sorgenfrei +4 more
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A simplified description of X-ray free-electron lasers [PDF]
Journal of Synchrotron Radiation, 2011 It is shown that an elementary semi-quantitative approach explains essential features of the X-ray free-electron laser mechanism, in particular those of the gain and saturation lengths. Using mathematical methods and derivations simpler than complete theories, this treatment reveals the basic physics that dominates the mechanism and makes it difficult ...
Margaritondo, G., Ribic, Primoz Rebernik
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Ultrashort Free-Electron Laser X-ray Pulses
Applied Sciences, 2017 For the investigation of processes happening on the time scale of the motion of bound electrons, well-controlled X-ray pulses with durations in the few-femtosecond and even sub-femtosecond range are a necessary prerequisite.
Wolfram Helml +15 more
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High efficiency, multiterawatt x-ray free electron lasers
Physical Review Accelerators and Beams, 2016 In this paper we present undulator magnet tapering methods for obtaining high efficiency and multiterawatt peak powers in x-ray free electron lasers (XFELs), a key requirement for enabling 3D atomic resolution single molecule imaging and nonlinear x-ray ...
C. Emma, K. Fang, J. Wu, C. Pellegrini
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Stimulated resonant inelastic X-ray scattering in a solid
Communications 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
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High-brightness electron injectors for high-duty cycle X-ray free electron lasers
Frontiers 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
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Free electron laser generation of x-ray Poincaré beams [PDF]
New Journal of Physics, 2020 Abstract An optics-free method is proposed to generate x-ray radiation with spatially variant states of polarization via an afterburner extension to a free electron laser. Control of the polarization in the transverse plane is obtained through the overlap of different coherent transverse light distributions radiated from a bunched ...
Morgan, Jenny +3 more
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Laser assisted electron beam conditioning for free electron lasers
Physical 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
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Signatures of misalignment in x-ray cavities of cavity-based x-ray free-electron lasers
Physical 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
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An X-ray gas monitor for free-electron lasers [PDF]
Journal of Synchrotron Radiation, 2019 A novel X-ray gas monitor (XGM) has been developed which allows the measurement of absolute photon pulse energy and photon beam position at all existing and upcoming free-electron lasers (FELs) over a broad spectral range covering vacuum ultraviolet (VUV), extreme ultraviolet (EUV) and soft and hard X-rays.
Andrey A. Sorokin +9 more
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