Lattice Dynamics
Research Group Alexander Paarmann
Lattice Dynamics
Research Group Alexander Paarmann
Lattice Dynamics
Research Group Alexander Paarmann

Riko Kießling
Riko Kießling
Doctoral Student, grad. Aug. 2020
Department of Physical Chemistry
Fritz Haber Institute
Faradayweg 4-6
14195 Berlin
Germany

My research focuses on nonlinear light-matter interaction using vibrational sum-frequency generation (SFG) spectroscopy. To this end, resonant excitation of low-energy quanta like phonons in dielectric materials is investigated by coherent mid-infrared free-electron laser radiation.
Further, the dephasing dynamics of the induced electric polarization is studied on a fs time scale by means of time-domain SFG spectroscopy.