title: Possibility of X-ray pulse compression using an asymmetric or inclined double-crystal monochromator.
abstract: It is shown theoretically that the asymmetric or inclined double-crystal X-ray monochromator may be used for X-ray pulse compression if the pulse is properly chirped. By adjusting the mutual distance of the two asymmetric or inclined crystals it should be possible to achieve even a sub-femtosecond compression of a chirped free-electron laser pulse. The small d-spacing of the crystal enables a more compact scheme compared with the currently used grating compression scheme. The asymmetric cut of the crystal enables the acceptance of a larger bandwidth. The inclined cut has larger tunability.
authors.affiliation: Institute of Physics, Academy of Sciences of the Czech Republic v.v.i., Na Slovance 2, 18221 Praha 8, Czech Republic. hrdy@fzu.cz
authors.forename: Jaromir
authors.initials: J
authors.lastname: Hrdý
authors.forename: Peter
authors.initials: P
authors.lastname: Oberta
keywords: X-ray monochromator; X-ray pulse compression; XFEL; asymmetric crystals; inclined crystals