Acoustic response of a laser-excited polycrystalline Au-film studied by ultrafast Debye-Scherrer diffraction at a table-top short-pulse X-ray source

The transient acoustic response of a free-standing, polycrystalline thin Au film upon femtosecond optical excitation has been studied by time-resolved Debye-Scherrer X-ray diffraction using ultrashort Cu K_{\alpha} X-ray pulses from a laser-driven plasma X-ray source. The temporal strain evolution has been determined from the transient shifts of multiple Bragg diffraction... Show more