Single- and two-color attosecond hard x-ray free-electron laser pulses with nonlinear compression
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Date
2020
Publication Type
Journal Article
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yes
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Abstract
We report on the generation of one- and two-color attosecond hard x-ray pulses at SwissFEL by appropriately tailoring the nonlinear compression of the electron beam. For achieving very short [about 300 attoseconds (as)] and stable single-color pulses, we minimize the collective effects of the longitudinal space-charge forces by strongly compressing the electron beam right before the undulator, utilizing the energy collimator chicane as a third compression stage. For achieving two-color short pulses, we exploit enhanced space-charge forces splitting the beam into two energy components.
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Publication status
published
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Journal / series
Volume
23 (10)
Pages / Article No.
42018
Publisher
American Physical Society