Research
The chair deals with the experimental and numerical investigation of the transport of molecules, ionic species or particles at interfaces (liquid-gas, liquid-solid, liquid-liquid interfaces). Such processes are fundamental in many processes and not infrequently the rate-limiting step. With our work, we want to contribute to an improved basic understanding of these processes in multi-phase systems as well as to improve the efficiency of process engineering processes.

e.g. interferometry
For the determination of concentration or temperature distributions in fluids at interfaces, we use various interferometric methods, such as Mach-Zehnder or differential interferometry. In these methods, a regular pattern of interference fringes of an adjustable wavenumber is generated which is deformed in a characteristic way by optical inhomogeneities, e.g. due to inhomogeneous concentration distribution. From these deformations, the concentration field is reconstructed using wavelet or Fourier transform based algorithms.