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Single-shot X-ray absorption spectroscopy at X-ray free electron lasers [PDF]

open access: yesScientific Reports, 2023
X-ray Absorption Spectroscopy (XAS) is a widely used X-ray diagnostic method for studying electronic and structural properties of matter. At first glance, the relatively narrow bandwidth and the highly fluctuating spectral structure of X-ray Free ...
Marion Harmand   +5 more
doaj   +2 more sources

Free Electron Lasers [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 1985
The free electron laser (FEL) uses a high quality relativistic beam of electrons passing through a periodic magnetic field to amplify a copropagating optical wave (1-4). In an oscillator configuration, the light is stored between the mirrors of an open optical resonator as shown in Figure 1.
Colson, W. B., Sessler, A. M.
  +6 more sources

Science at X-ray Free Electron Lasers

open access: yesApplied Sciences, 2021
X-ray Free Electron Lasers (FELs) deliver coherent X-ray pulses, combining unprecedented power densities of up to 1020 W/cm2 and extremely short pulse durations down to hundreds of attoseconds [...]
Kiyoshi Ueda
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

Ultrashort ultraviolet free-electron lasers [PDF]

open access: yesJournal of X-Ray Science and Technology, 1994
In this work we combine elements of chirped pulse amplification (CPA) techniques, now familiar in solid-state lasers, with an amplifier based upon a seeded free-electron laser (FEL). The resulting device would produce amplified pulses of unprecedented brevity at wavelengths shorter than can be currently obtained by any tunable laser system.
Umstadter, Donald   +3 more
openaire   +3 more sources

Seeded Free-Electron Lasers and Free-Electron Laser Applications [PDF]

open access: yesSynchrotron Radiation News, 2016
Several decades after the groundbreaking discovery of X-rays in 1895 by Wilhelm Conrad Roentgen, it became quite evident that the possibility of building X-ray sources with controlled photon beam parameters was a revolutionary step to address some of the important challenges facing humanity.
Fulvio Parmigiani, Daniel Ratner
openaire   +1 more source

Photonic Free-Electron Lasers

open access: yesIEEE Photonics Journal, 2012
A photonic free-electron laser (pFEL) produces coherent Cerenkov radiation from a set of parallel electron beams streaming through a photonic crystal. The function of the crystal is to slow down the phase velocity of a copropagating electromagnetic wave,
P. J. M. van der Slot   +4 more
doaj   +1 more source

On Free-Electron Laser Growing Modes and their Bandwidth

open access: yes, 2011
Free-electron lasers play an increasing role in science, from generating unique femtosecond X- ray pulses for single short recording of the protein structures to amplifying feeble interactions in advanced cooling systems for high-energy hadron colliders.
A. M. Kondratenko   +10 more
core   +6 more sources

Short-Wavelength Free-Electron Lasers

open access: yesIEEE Photonics Journal, 2010
This paper presents a short review of the development of and the motivation for short-wavelength free-electron lasers. The first observation of coherent X-ray production was reported from the Linac Coherent Light Source in April 2009.
Keith A. Nugent, William A. Barletta
doaj   +1 more source

Automatic tuning of Free Electron Lasers [PDF]

open access: yes, 2017
Existing FEL facilities often suffer from stability issues: so electron orbit, transverse electron optics, electron bunch compression and other parameters have to be readjusted often to account for drifts in performance of various components.
Agapov, I.   +3 more
core   +1 more source

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