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Updated: Jul 18, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Femtosecond electron pulse characterization using laser ponderomotive scattering
Christoph T Hebeisen1, Ralph Ernstorfer, Maher Harb
1Institute for Optical Science, University of Toronto, Toronto, Ontario, Canada.
Abstract:
We demonstrate a method for the measurement of the instantaneous duration of femtosecond electron pulses using the ponderomotive force of an intense ultrashort laser pulse. An analysis procedure for the extraction of the electron pulse duration from the transient change of the transverse electron beam profile is proposed. The durations of the electron pulses generated in our setup were determined to be 410+/-30 fs.
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