3-year postdoc position, Infrared Imaging and Spectroscopy with Free-electron Lasers, Fritz Haber Institute, Berlin, Germany (Deadline: 09.07.2025)

Our group uses the in-house infrared free-electron laser (FHI-FEL) as well as external FEL user-facilities (FELBE, FELIX) to perform advanced imaging and spectroscopy of condensed phase systems and interfaces from the mid- and far-infrared into the THz. Our techniques range from direct spectroscopic imaging in the infrared to subdiffractional imaging using nonlinear optical sum-frequency approaches or tip-based near-field imaging. Additionally, we also perform momentum space spectroscopy and momentum space imaging to map the dispersion of evanescent modes. Finally, we also currently established time-resolved infrared-THz pump-probe spectroscopy using the newly commissioned two-color operation of the FHI-FEL.