Joachim Ullrich

TL;DR: In this paper, the authors reported experimental results on x-ray diffraction of quantum-state-selected and strongly aligned ensembles of the prototypical asymmetric rotor molecule 2,5-diiodobenzonitrile using the Linac Coherent Light Source.

TL;DR: New sources and detectors allow atomic and molecular structure to be studied at mid-infrared wavelengths, where interpreting experiments is more straightforward as discussed by the authors, and the results of the experiments can be found in the full version of this article.

TL;DR: In this article, a combination of a mid-IR source and a reaction microscope detection system is presented to provide an unprecedented three-dimensional view of strong-field interactions, and the system is capable of generating and detecting electron energies that span a six order of magnitude dynamic range.

TL;DR: In this article, the authors demonstrate an experimental method to record snapshot diffraction images of polyatomic gas-phase molecules, which can, in a next step, be used to probe time-dependent changes in the molecular geometry during photochemical reactions with femtosecond temporal and angstrom spatial resolution.

TL;DR: In this article, a triply differential single ionization cross section for electrons emitted into the scattering plane in 3.6 MeV-1 Au53+ + + He collisions is presented, which shows that post-collision interaction between the scattered projectile and the ionized electron strongly affects the recoil peak, but it influences the binary peak rather weakly.