| 1981 |
Diplom (Physics), University of Freiburg |
| 1982 |
Visiting Scientist, Stanford Research Institute (SRI International), USA |
| 1983-1986 |
University of Freiburg, Ph.D. student |
| 1986 |
PhD (Physics), University of Freiburg |
| 1986-1987 |
Postdoc, IBM Rüschlikon Laboratory, Switzerland |
| 1987-1990 |
Assistant, Ludwig-Maximilians University of Munich, Group Prof. Dr. T. Hänsch |
| 1990-1994 |
Assistant, University of Constance, Group Prof. Dr. K. Dransfeld |
| 1991 |
Habilitation , Experimental Physics, University of Constance |
| 1994-1997 |
Professor (C3), Surface Science; University of Stuttgart |
| 1997-today |
Chair for Surface Science, Faculty of Physics, University of Duisburg-Essen |