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- Savelyev, Evgeny, et al.
(author)
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Jitter-correction for IR/UV-XUV pump-probe experiments at the FLASH free-electron laser
- 2017
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In: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 19:4
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Journal article (peer-reviewed)abstract
- In pump-probe experiments employing a free-electron laser (FEL) in combination with a synchronized optical femtosecond laser, the arrival-time jitter between the FEL pulse and the optical laser pulse often severely limits the temporal resolution that can be achieved. Here, we present a pump-probe experiment on the UV-induced dissociation of 2,6-difluoroiodobenzene (C6H3F2I) molecules performed at the FLASH FEL that takes advantage of recent upgrades of the FLASH timing and synchronization system to obtain high-quality data that are not limited by the FEL arrival-time jitter. We discuss in detail the necessary data analysis steps and describe the origin of the time-dependent effects in the yields and kinetic energies of the fragment ions that we observe in the experiment.
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