Dr. Oliver Höhn received his Ph.D. from the University of Freiburg in 2015 with the thesis "Angle-selective photonic structures for an optimized radiation balance in solar cells". Since then, he has been working at Fraunhofer ISE as a researcher and project manager in the Team Micro structured surfaces. His research focuses on Micro- and nanostructured functional surfaces, large area structure origination by interference lithography, optical and topographical characterization of micro and nanostructured surfaces and thin films, wave optical modelling, photon management for optoelectronic devices considering emission processes, modelling and design of complex thin-film filters, optical modelling of solar cells, especially highly efficient multi-junction solar cells.