Chirped pulse amplification in an extreme-ultraviolet free-electron laser

Abstract : Chirped pulse amplification in optical lasers is a revolutionary technique, which allows the generation of extremely powerful femtosecond pulses in the infrared and visible spectral ranges. Such pulses are nowadays an indispensable tool for a myriad of applications, both in fundamental and applied research. In recent years, a strong need emerged for light sources producing ultra-short and intense laser-like X-ray pulses, to be used for experiments in a variety of disciplines, ranging from physics and chemistry to biology and material sciences. This demand was satisfied by the advent of short-wavelength free-electron lasers. However, for any given free-electron laser setup, a limit presently exists in the generation of ultra-short pulses carrying substantial energy. Here we present the experimental implementation of chirped pulse amplification on a seeded free-electron laser in the extreme-ultraviolet, paving the way to the generation of fully coherent sub-femtosecond gigawatt pulses in the water window (2.3-4.4 nm).
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Submitted on : Tuesday, February 14, 2017 - 3:36:21 PM
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David Gauthier, Enrico Allaria, Marcello Coreno, Ivan Cudin, Hugo Dacasa, et al.. Chirped pulse amplification in an extreme-ultraviolet free-electron laser. Nature Communications, Nature Publishing Group, 2016, 7, pp.13688. ⟨10.1038/ncomms13688⟩. ⟨hal-01467597⟩

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