482 citations · 919 across the 19 of their papers we have counts for
19 papers
Three Dimensional Theory of the Ion Channel Laser
Claire Hansel, Agostino Marinelli, Zhirong Huang +1
The ion channel laser (ICL) is a plasma-based alternative to the free electron laser (FEL) that uses the electric field of a uniform-density ion channel rather than the magnetic fi…
Efficient prediction of attosecond two-colour pulses from an X-ray free-electron laser with machine learning
Karim K. Alaa El-Din, Oliver G. Alexander, Leszek J. Frasinski +12
X-ray free-electron lasers are sources of coherent, high-intensity X-rays with numerous applications in ultra-fast measurements and dynamic structural imaging. Due to the stochasti…
The LCLS-II Photoinjector Laser Infrastructure
Hao Zhang, Sasha Gilevich, Alan Miahnahri +23
This paper presents a comprehensive technical overview of the Linac Coherent Light Source II (LCLS-II) photoinjector laser system, its first and foremost component. The LCLS-II pho…
Nonlinearly Shaped Pulses in Photoinjectors and Free-Electron Lasers
Nicole Neveu, Randy Lemons, Joseph Duris +4
Photoinjectors and Free Electron Lasers (FEL) are amongst the most advanced systems in accelerator physics and have consistently pushed the boundaries of emittance and x-ray peak p…
Streaking single-electron ionization in open-shell molecules driven by X-ray pulses
M. E. Mountney, T. C. Driver, A. Marinelli +3
We obtain continuum molecular wavefunctions for open-shell molecules in the Hartree-Fock framework. We do so while accounting for the singlet or triplet total spin symmetry of the…
Enhanced ultrafast X-ray diffraction by transient resonances
Stephan Kuschel, Phay J. Ho, Andre Al Haddad +15
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 wi…
The Time-resolved Atomic, Molecular and Optical Science Instrument at the Linac Coherent Light Source
Peter Walter, Timur Osipov, Ming-Fu Lin +39
The newly constructed Time-resolved atomic, Molecular and Optical science instrument (TMO), is configured to take full advantage of both linear accelerators at SLAC National Accele…
Electron beam shaping via laser heater temporal shaping
D. Cesar, A. Anakru, S. Carbajo +6
Active longitudinal beam optics can help FEL facilities achieve cutting edge performance by optimizing the beam to: produce multi-color pulses, suppress caustics, or support attose…
Attosecond Coherent Electron Motion in Auger-Meitner Decay
Siqi Li, Taran Driver, Philipp Rosenberger +38
In quantum systems, coherent superpositions of electronic states evolve on ultrafast timescales (few femtosecond to attosecond, 1 as = 0.001 fs = 10^{-18} s), leading to a time dep…
Correlation Driven Transient Hole Dynamics Resolved in Space and Time in the Isopropanol Molecule
T. Barillot, O. Alexander, B. Cooper +46
The possibility of suddenly ionized molecules undergoing extremely fast electron hole dynamics prior to significant structural change was first recognized more than 20 years ago an…
Temporal shaping of narrow-band picosecond pulses via non-colinear sum-frequency mixing of dispersion-controlled pulses
Randy Lemons, Nicole Neveu, Joseph Duris +3
A long sought-after goal for photocathode electron sources has been to improve performance by temporally shaping the incident exitation laser pulse. The narrow bandwidth, short wav…
Terawatt attosecond X-ray source driven by a plasma accelerator
Claudio Emma, Xinlu Xu, Andrew Fisher +6
Plasma accelerators can generate ultra high brightness electron beams which open the door to light sources with smaller physical footprint and properties un-achievable with convent…
Generation of terawatt, attosecond pulses from relativistic transition radiation
Xinlu Xu, David B. Cesar, Sébastien Corde +5
When a fs duration and hundreds of kA peak current electron beam traverses the vacuum and high-density plasma interface a new process, that we call relativistic transition radiatio…
Attosecond Transient Absorption Spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy
Taran Driver, Siqi Li, Elio G. Champenois +38
The recent demonstration of isolated attosecond pulses from an X-ray free-electron laser (XFEL) opens the possibility for probing ultrafast electron dynamics at X-ray wavelengths.…
Phase-stable self-modulation of an electron-beam in a magnetic wiggler
James P. MacArthur, Joseph Duris, Zhen Zhang +5
Electron-beams with a sinusoidal energy modulation have the potential to emit sub-femtosecond x-ray pulses in a free-electron laser. The energy modulation can be generated by overl…
Tunable Isolated Attosecond X-ray Pulses with Gigawatt Peak Power from a Free-Electron Laser
Joseph Duris, Siqi Li, Taran Driver +31
The quantum mechanical motion of electrons in molecules and solids occurs on the sub-femtosecond timescale. Consequently, the study of ultrafast electronic phenomena requires the g…
Coherent Space-Charge to X-ray Up-Conversion in Gas
Siqi Li, Elio G. Champenois, James P. Cryan +1
We theoretically investigate the use of the intense transverse field created by a relativistic electron bunch to drive strong-field processes. Such bunches can be easily implemente…
Ultrafast x-ray-induced nuclear dynamics in diatomic molecules using femtosecond x-ray/x-ray pump-probe spectroscopy
C. S. Lehmann, A. Picón, C. Bostedt +22
The capability of generating two intense, femtosecond x-ray pulses with controlled time delay opens the possibility of performing time-resolved experiments for x-ray induced phenom…
Machine learning applied to single-shot x-ray diagnostics in an XFEL
A. Sanchez-Gonzalez, P. Micaelli, C. Olivier +39
X-ray free-electron lasers (XFELs) are the only sources currently able to produce bright few-fs pulses with tunable photon energies from 100 eV to more than 10 keV. Due to the stoc…