Initial observations of the femtosecond timing jitter at the European XFEL
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- European X-ray Free-Electron Laser (XFEL), Schenefeld (Germany)
- Christian-Albrechts-Univ. zu Kiel, Kiel (Germany). Inst. für Experimentelle und Angewandte Physik
- European X-ray Free-Electron Laser (XFEL), Schenefeld (Germany); Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany)
- La Trobe Univ., Melbourne, VIC (Australia). La Trobe Inst. for Molecular Science, Dept. of Chemistry and Physics
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
- European X-ray Free-Electron Laser (XFEL), Schenefeld (Germany); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science
- European X-ray Free-Electron Laser (XFEL), Schenefeld (Germany; La Trobe Univ., Melbourne, VIC (Australia). La Trobe Inst. for Molecular Science, Dept. of Chemistry and Physics
Intense, ultrashort, and high-repetition-rate X-ray pulses, combined with a femtosecond optical laser, allow pump-probe experiments with fast data acquisition and femtosecond time resolution. However, the relative timing of the X-ray pulses and the optical laser pulses can be controlled only to a level of the intrinsic error of the instrument which, without characterization, limits the time resolution of experiments. This limitation inevitably calls for a precise determination of the relative arrival time, which can be used after measurement for sorting and tagging the experimental data to a much finer resolution than it can be controlled to. The observed root-mean-square timing jitter between the X-ray and the optical laser at the SPB/SFX instrument at European XFEL was 308 fs. This first measurement of timing jitter at the European XFEL provides an important step in realizing ultrafast experiments at this novel X-ray source. Lastly, a method for determining the change in the complex refractive index of samples is also presented.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1529232
- Journal Information:
- Optics Letters, Journal Name: Optics Letters Journal Issue: 7 Vol. 44; ISSN 0146-9592; ISSN OPLEDP
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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