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Generation of attosecond soft x-ray pulses in a longitudinal space charge amplifier

M. Dohlus, E. A. Schneidmiller, M. V. Yurkov, Eric Esarey, Carl B. Schroeder, Wim P. Leemans, Kenneth W. D. Ledingham, Dino A. Jaroszynski
2013 Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III  
A longitudinal space charge amplifier (LSCA), operating in soft x-ray regime, was recently proposed. Such an amplifier consists of a few amplification cascades (focusing channel and chicane) and a short radiator undulator in the end. Broadband nature of LSCA supports generation of few-cycle pulses as well as wavelength compression. In this paper we consider an application of these properties of LSCA for generation of attosecond x-ray pulses. It is shown that a compact and cheap addition to the
more » ... ap addition to the soft x-ray free electron laser facility FLASH would allow to generate 60 attosecond (FWHM) long x-ray pulses with the peak power at 100 MW level and a contrast above 98%.
doi:10.1117/12.2017018 fatcat:uk35ej6omff3bnxyxhgzns5tvu