Our research interests are focused on collective dynamic phenomena in plasmas, such as
waves, instabilities, chaos and turbulence. A central object of our studies are plasmas
that contain additional micron-sized particles, so-called dusty or complex plasmas. Investigations
on complex plasmas are made in laboratory experiments and under microgravity aboard parabolic flights.
Since dynamic phenomena in complex plasmas involve frequencies below 100 Hz, we can observe
waves or particle motion by recording movies with fast digital cameras. The microparticles are
manipulated by using the radiation pressure of a medium-power laser. Various recording
techniques are used, among them video microscopy and digital holography.
Our investigations are embedded in the Transregional Collaborative Research Centre
Greifswald-Kiel SFB TR-24 "Fundamentals of Complex Plasmas"