Resonant Two-Color Photoionization Processes in Atoms and Molecules
The proposed PhD position is part of a larger research program within the Collaborative Research Area (Sonderforschungsbereich SFB) 925 “Light induced dynamics and control of strongly correlated quantum systems” of the University of Hamburg. It is dedicated to ultrafast investigations of electronic correlations in atoms and molecules with femtosecond visible/IR and XUV/X-ray pulses. The PhD-project will focus on the study of highly excited auto-ionizing resonances by different pump-probe approaches aiming to obtain invaluable and novel insight into atomic and molecular dynamics. The experiments will take advantage of advanced electron and ion spectroscopy techniques in combination with state-of-the-art femtosecond optical lasers, laser-based soft x-ray sources as well as new powerful (x-ray) free-electron lasers. The suggested work is situated in the center of the rapidly evolving scientific field of non-linear processes and polarization-dependent phenomena in small quantum systems induced by intense light fields.
The successful candidate will be actively involved in pump-probe experiments at our laser laboratory and at international free-electron laser facilities. As technical aspect of the thesis, the commissioning of a delay-line based velocity map imaging spectrometer, which is compatible with an already existing time-of-flight spectrometer, is foreseen. In general, the PhD student will perform the experimental work and the corresponding data analysis within the SQS (Small Quantum Systems) research group at the European XFEL assuring continuous support from several staff scientists and other PhD students involved in the project.
Ideally, the candidate has strong interest in atomic and molecular physics, as well as in laser and X-ray spectroscopy. Experience in electron and/or ion spectroscopy using laser light and/or x-rays are a merit, but not a requirement.
The work will be performed at the European XFEL in the research group of Dr. M. Meyer.
Contact: M. Meyer, michael.meyer(at)xfel.eu, +49 40 8998 5614
P. Grychtol, firstname.lastname@example.org, +49 40 8998 6773