 He carried out postdoctoral research in the UK (University of Liverpool), France (Grenoble Institute of Technology), Germany (TU Braunschweig) and USA (MIT, Boston University), focusing on the field of solid state physics and technological materials.In 1984–1995 he held the position of professor at the department of physics, Aristotle University of Thessaloniki, serving as its chairman in 1984–89.From this position he was responsible for the installation of the first LAN at the university campus, covering 26 buildings, in 1991–93.