- until Jan. 2011: Dr. Kamel A. K. Gadallah, now back to Al-Azhar University, Cairo
- until Feb. 2010: Dr. Akemi Tamanai, now at Kirchhoff-Institut Heidelberg
- until Dec. ´06: Dr. Isabel Llamas Jansa, now at IFE Lillestrom, Norway
- until Sept. ´06: Dipl.-Phys. Walter Teuschel, retired but still keeping our instruments working
- until June ´06: Dipl.-Phys. Susann Hummel, now at EADS Munich
- until Aug. ´04: Dr. Johann Dorschner, retired but still active
- until July ´04: Dr. Angela Staicu
- until July ´04: Dr. Oleksandr Sukhorukov
- until Feb. ´04: Dr. Ewa Diegel
- until Feb. ´03: Dr. Dominik Clément
- until Jan. ´03: Dr. Gael Rouillé
- until Nov. ´02: Dr. Dirk Fabian
- until May ´02: Prof. Dr. Th. Henning, now at MPIA Heidelberg
- until March ´02: Dr. Shantanu Rastogi
- until Dec. ´98: Dr. Martin Schnaiter, now at IMK Karlsruhe
- until Oct. ´98: Dr. Anja Braatz
- until Dec. ´96: Dr. Birgit Begemann