title: Reshaping of attosecond x-ray pulses in thin crystals.
abstract: A method for reshaping and control of the duration of attosecond x-ray pulses in thin crystals is proposed. The finite width of the reflection and transmission curves around the Bragg angle allows one to engineer Fabry-Perot-type filters for the generation of a large variety of attosecond pulse shapes. The method considered here can be used to manipulate attosecond pulses produced by high-harmonic generation and also for shorter wavelengths for attosecond pulses from x-ray free-electron lasers. X-ray pulses with controllable amplitude and phase may find useful applications in the newly emerging area of attosecond time-resolved spectroscopy.
authors.affiliation: Department of Physics, University of Sofia, Bulgaria. ipc@phys.uni-sofia.bg
authors.forename: Ivan P
authors.initials: IP
authors.lastname: Christov