H. Wabnitz

TL;DR: Initial results from a study of the interaction of soft X-ray radiation, generated by a free-electron laser, with Xe atoms and clusters are presented, finding that, whereasXe atoms become only singly ionized by the absorption of single photons, absorption in clusters is strongly enhanced.

TL;DR: In the spectral range of the extreme ultraviolet at a wavelength of 13.3 nm, the photoionization of xenon at ultrahigh intensities is studied and surprising results are discussed in terms of a perturbative and nonperturbative description.

TL;DR: The interaction of intense extreme ultraviolet femtosecond laser pulses from the FLASH free electron laser with clusters is investigated by means of photoelectron spectroscopy and modeled by Monte Carlo simulations and finds no evidence for electron emission from plasma heating processes.

TL;DR: The interaction of intense vacuum-ultraviolet radiation from a free-electron laser with rare gas atoms is investigated and the mechanisms of multiphoton processes were derived.

TL;DR: It is shown that single-shot single-particle scattering on femtosecond time scales yields insight into ultrafast processes in highly excited systems where conventional spectroscopy techniques are inherently blind.