Laser-pump/X-ray-probe experiments with electrons ejected from a Cu(111) target: space-charge acceleration.

@article{Schiwietz2016LaserpumpXrayprobeEW,
  title={Laser-pump/X-ray-probe experiments with electrons ejected from a Cu(111) target: space-charge acceleration.},
  author={Gregor Schiwietz and Danilo K{\"u}hn and Alexander F{\"o}hlisch and Karsten Holldack and Torsten Kachel and Niko Pontius},
  journal={Journal of synchrotron radiation},
  year={2016},
  volume={23 Pt 5},
  pages={
          1158-70
        }
}
A comprehensive investigation of the emission characteristics for electrons induced by X-rays of a few hundred eV at grazing-incidence angles on an atomically clean Cu(111) sample during laser excitation is presented. Electron energy spectra due to intense infrared laser irradiation are investigated at the BESSY II slicing facility. Furthermore, the influence of the corresponding high degree of target excitation (high peak current of photoemission) on the properties of Auger and photoelectrons… Expand
5 Citations
Dynamics of space-charge acceleration of X-ray generated electrons emitted from a metal surface
Abstract The so-called vacuum space-charge acceleration of emitted electrons triggered by absorption of soft X-rays (a few 100 eV) under intense near-infrared laser excitation is studiedExpand
Multidimensional photoemission spectroscopy—the space-charge limit
Photoelectron spectroscopy, especially at pulsed sources, is ultimately limited by the Coulomb interaction in the electron cloud, changing energy and angular distribution of the photoelectrons. AExpand
Suppression of the vacuum space-charge effect in fs-photoemission by a retarding electrostatic front lens.
TLDR
An approach to effectively suppress space-charge artifacts in momentum microscopes and photoemission microscopes using a retarding electrostatic field generated by a special objective lens, which permits increasing the slow-electron yield by three to four orders of magnitude. Expand
Bunch-resolved diagnostics for a future electron-storage ring
Abstract The upgrade of the BESSY II light source in Berlin towards a variable pulse-length storage-ring will lead to a complex bunch-filling pattern. This may involve co-existing electron bunchesExpand
Picosecond pump–probe X-ray scattering at the Elettra SAXS beamline
TLDR
A new setup for picosecond pump–probe X-ray scattering at the Austrian SAXS beamline at Elettra-Sincrotrone Trieste is presented and results of a first transient-heating experiment are shown. Expand

References

SHOWING 1-10 OF 95 REFERENCES
Space-charge effects in high-energy photoemission
Abstract Pump-and-probe photoelectron spectroscopy (PES) with femtosecond pulsed sources opens new perspectives in the investigation of the ultrafast dynamics of physical and chemical processes atExpand
Vacuum space-charge effects in solid-state photoemission
Solid-state photoemission spectroscopy relies to a large part on pulsed photon sources: third-generation synchrotron-radiation sources and ultrafast laser systems in particular. Especially when theExpand
The retarding Bessel–Box—An electron-spectrometer designed for pump/probe experiments
Abstract A new type of electrostatic electron spectrometer is developed, capable of particular sensitive measurements of energy spectra and time-of-flight distributions. This instrument isExpand
Space charge effects in photoemission with a low repetition, high intensity femtosecond laser source
In this paper, we present experimental results on the effect of space charging in photoelectron spectroscopy from a surface using a pulsed and intense femtosecond light source. We particularly focusExpand
Vacuum space charge effects in sub-picosecond soft X-ray photoemission on a molecular adsorbate layer
TLDR
Using the same analysis for 400 nm pump-X-ray probe PES, the delay dependent Ru 3d energy shifts are disentangled into effects induced by space charge and by lattice heating from the femtosecond pump pulse. Expand
Correction of the deterministic part of space-charge interaction in momentum microscopy of charged particles.
TLDR
Simulations of a realistic photoemission experiment including space-charge interaction reveals that a gain of an order of magnitude in resolution is possible using the correction technique presented here. Expand
Production of relativistic electrons by irradiation of 43-fs-laser pulses on copper film
The energy spectra of fast electrons produced by ultrashort, high-intensity laser pulses were directly measured using a magnetic spectrometer with an imaging plate. The typical temperature was 350Expand
Towards time resolved core level photoelectron spectroscopy with femtosecond x-ray free-electron lasers
We have performed core level photoelectron spectroscopy on a W(110) single crystal with femtosecond XUV pulses from the free-electron laser at Hamburg (FLASH). We demonstrate experimentally andExpand
Direct observation of space charge dynamics by picosecond low-energy electron scattering
The transient electric field governing the dynamics of space charge is investigated by time- and energy-resolved low-energy electron scattering. The space charge above a copper target is produced byExpand
FemtoSpeX: a versatile optical pump-soft X-ray probe facility with 100 fs X-ray pulses of variable polarization.
Here the major upgrades of the femtoslicing facility at BESSY II (Khan et al., 2006) are reviewed, giving a tutorial on how elliptical-polarized ultrashort soft X-ray pulses from electron storageExpand
...
1
2
3
4
5
...