title: The rotating-crystal method in femtosecond X-ray diffraction.
abstract: We report the first implementation of the rotating-crystal method in femtosecond X-ray diffraction. Applying a pump-probe scheme with 100 fs hard X-ray probe pulses from a laser-driven plasma source, the novel technique is demonstrated by mapping structural dynamics of a photoexcited bismuth crystal via changes of the diffracted intensity on a multitude of Bragg reflections. The method is compared to femtosecond powder diffraction and to Bragg diffraction from a crystal with stationary orientation.
authors.affiliation: Max-Born-Institut f¨ur Nichtlineare Optik und Kurzzeitspektroskopie, 12489 Berlin, Germany. bfreyer@mbi-berlin.de
authors.forename: B
authors.initials: B
authors.lastname: Freyer
authors.forename: J
authors.initials: J
authors.lastname: Stingl
authors.forename: F
authors.initials: F
authors.lastname: Zamponi
authors.forename: M
authors.initials: M
authors.lastname: Woerner
authors.forename: T
authors.initials: T
authors.lastname: Elsaesser
mesh_terms: D000465:Algorithms; D001696:Biomechanical Phenomena; D001729:Bismuth / Q000737:chemistry; D003460:Crystallization; D018360:Crystallography, X-Ray / Q000379:methods*; D004867:Equipment Design; D007834:Lasers; D013997:Time Factors; D014961:X-Ray Diffraction; D014965:X-Rays
chemical_list: D001729:Bismuth