title: High-order Raman scattering of X rays by optical phonons and generation of ultrafast X-ray transients.
abstract: We study the modulation of x-ray diffraction in ideal crystals by a copropagating wave of optical vibrations generated by a fs-laser pulse. Our results suggest that in the synchronous interaction regime the output diffracted x-ray field has the form of ultrafast transients with a time structure even shorter than the period of the excited vibrational mode. The behavior is explained in terms of high-order Raman scattering of x rays by optical phonons.
authors.affiliation: Friedrich-Schiller-Universität, Institut für Optik und Quantenelektronik, Max-Wien-Platz 1, D-07743 Jena, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Nazarkin
authors.forename: I
authors.initials: I
authors.lastname: Uschmann
authors.forename: E
authors.initials: E
authors.lastname: Förster
authors.forename: R
authors.initials: R
authors.lastname: Sauerbrey
mesh_terms: D055095:Optics and Photonics; D012542:Scattering, Radiation; D013059:Spectrum Analysis, Raman / Q000379:methods*; D014961:X-Ray Diffraction; D014965:X-Rays