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Time-to-space mapping in a gas medium for the temporal characterization of vacuum-ultraviolet pulses

2007; American Institute of Physics; Volume: 90; Issue: 12 Linguagem: Inglês

10.1063/1.2714999

1520-8842

Stefan Cunovic, Norbert Müller, Roland Kalms, Maria Krikunova, Marek Wieland, Markus Drescher, T. Maltezopoulos, Ulrike Frühling, H. Redlin, Elke Plönjes, J. Feldhaus,

Mass Spectrometry Techniques and Applications

The authors introduce a method for cross correlating vacuum-ultraviolet with near-infrared femtosecond light pulses in a perpendicular geometry. Photoelectrons generated in an atomic gas by laser-assisted photoionization are used to create a two-dimensional image of the cross-correlation volume, thereby mapping time onto a space coordinate. Thus, information about pulse duration and relative timing between the pulses can be obtained without the need to scan an optical delay line. First tests using vacuum-ultraviolet pulses from the free-electron laser at the Deutsches Elektronen Synchrotron set an upper limit for their temporal jitter with respect to external optical laser pulses.