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. The 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
more » ... he soft x-ray freeelectron laser facility FLASH would allow one to generate 60 attosecond (FWHM) long x-ray pulses with the peak power at the 100 MW level and a contrast above 98%.
doi:10.1117/12.2017018 fatcat:uk35ej6omff3bnxyxhgzns5tvu