Research

As one major activity, I do experimentally oriented research on details of the spectroscopy, dynamics, and reactions of atomic and molecular systems using accelerators, ion traps (electrostatic and dynamic), lasers, synchrotron radiation, and free electron lasers. As one part this research, we have developed unique experimental facilities (XRING-lab) that allow studies of atmospherically relevant reactions in complete isolation as well as kinematically resolve light induced processes for example using the ASTRID2 light source. As an other part of this research, we have developed an unique experimental facility (SAPHIRA-lab) where molecular ions can be universally cooled to low temperature (20-30 K) and studied over extended timescale (from nanosecond to seconds) using a cold radio-frequency trap, an electrostatic storage ring, and laser light.

As another major activity, I do research on measuring saturation vapor pressure of low volatile compounds, for example to clarify questions related to the growth of particles suspended in the atmosphere. We have recently developed a new experimental station that uses a dynamical method to access the saturation vapor pressures of substances in the region around and below room temperature.  

I also do research on atmospheric processes using atmospheric simulations chambers where my main contributions have been the developments of techniques to enable characterization of chamber conditions and modelling of experimental outcomes.  

Finally, I do research on non-linear classical mechanical systems, in part focused on providing high-quality research type experimental setups for use in teaching on undergraduate level (1-4 year of the physics programme In Aarhus). Example include a new setup to study (priory unresolved) aspects of vibrating strings, pendulum motions, collisions in two dimensions, fluid motion, and Faraday waves.

Teaching

My main teaching activities are presently in the range of experimental physics. I am responsible for the course on experimental physics (including mainly experimental investigations within in mechanics) which is provide during the second semester of the physics study. I am also responsible for the course on Techniques in experimental physics that is provided on the masters programme and focusses on practical applications of data acquisition and electronics.