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Updated: May 13, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Using the relativistic two-stream instability for the generation of soft-x-ray attosecond radiation pulses
A Marinelli1, E Hemsing, J B Rosenzweig
1Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA.
Abstract:
In this Letter we discuss a novel method for generating ultrashort radiation pulses using a broadband two-stream instability in an intense relativistic electron beam. This method relies on an electron beam having two distinct two-energy bands. The use of this new high brightness electron beam scenario, in combination with ultrashort soft x-ray pulses from high harmonic generation in gas, allows the production of high power attosecond pulses for ultrafast pump and probe experiments.
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