Nina Rohringer

Theory of ultrafast processes with X-ray light

Nina Rohringer's research interests include the fundamental processes of the interaction of ultrafast X-ray pulses of free-electron X-ray lasers with matter. Free-electron X-ray lasers, such as FLASH at DESY and the European XFEL, are sources of radiation in the X-ray range of the electromagnetic spectrum that produce high-intensity pulses of the duration of a few femtoseconds and are used to study the electronic structure of matter. The ultrafast pulse duration of these sources also allows time-resolved studies of the electron and core motion. A special focus of the research group is the study of stimulated emission processes in the X-ray range, e.g. amplification of X-ray radiation by stimulated emission or scattering at atomic transitions, as well as non-linear processes initiated by more than one X-ray photon. Advances in these investigations will ultimately lead to the development of new non-linear spectroscopic and imaging methods with X-radiation to provide information about the concerted motion of electrons and nuclei in physical and chemical processes (such as phase transformation, chemical reaction, catalysis, photosynthesis, etc.) win.

Academic career

Since 2017 Leading Scientist at DESY and professor of physics at the University of Hamburg
Since 2015 Group leader of the Max Planck Research Group "Quantum Optics with X-Ray Light" at the Max Planck Institute for Dynamics and Structure of Matter, CFEL, Hamburg
2011-2015 Group leader of the Max Planck Research Group "Quantum Optics with X-Ray Light", Max Planck Institute for Physics Complex Systems, Dresden and CFEL, Hamburg
2009-2011 Physicist in the group "Theory and Modeling", Department of Physics, Lawrence Livermore National Laboratory, USA
2007-2009 Scientific assistant (postdoc) in the group "X-ray Science and Technology", Department of Physics, Lawrence Livermore National Laboratory, USA
2005-2007 Research associate (postdoctoral) in the group "Atomic, Molecular and Optical Physics", Department of Chemistry and Engineering, Argonne National Laboratory, USA
2001-2005 PhD at the Vienna University of Technology. Title of thesis: Quantitative test of time-dependent density functional theory: Two-electron systems in an external laser field
1995-2000 Diploma of Technical Physics at the Technical University of Vienna, Austria with two one-year study visits at the École Polytechnique Fédérale de Lausanne, Switzerland. Title of the thesis: Semiclassical Aspects of the Quantum Hall Effect