1. An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
- Author
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Dimitrios Rompotis, Daniel Rolles, Rebecca Boll, Bastian Manschwetus, and Benjamin Erk
- Subjects
Free electron model ,Pump-probe experiments ,Photochemistry ,General Chemical Engineering ,Jitter correction ,Physics::Optics ,Electrons ,Temporal and spatial overlap ,Issue 140 ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,010305 fluids & plasmas ,law.invention ,Flash (photography) ,Optics ,law ,Free-electron lasers ,ddc:570 ,0103 physical sciences ,Atomic and molecular physics ,010306 general physics ,Jitter ,General Immunology and Microbiology ,business.industry ,Lasers ,General Neuroscience ,Laser ,Chemistry ,Gas-phase molecules ,Extreme ultraviolet ,Temporal resolution ,Femtosecond ,Femtosecond lasers ,business ,Ultrashort pulse - Abstract
JoVE 140, e57055 (2018). doi:10.3791/57055, This protocol describes key steps in performing and analyzing femtosecond pump-probe experiments that combine a femtosecond optical laser with a free-electron laser. This includes methods to establish the spatial and temporal overlap between the optical and free-electron laser pulses during the experiment, as well as important aspects of the data analysis, such as corrections for arrival time jitter, which are necessary to obtain high-quality pump-probe data sets with the best possible temporal resolution. These methods are demonstrated for an exemplary experiment performed at the FLASH (Free-electron LASer Hamburg) free-electron laser in order to study ultrafast photochemistry in gas-phase molecules by means of velocity map ion imaging. However, most of the strategies are also applicable to similar pump-probe experiments using other targets or other experimental techniques., Published by JoVE, [S.l.]
- Published
- 2018
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