Theodoros Samaras received the Physics degree from Aristotle University of Thessaloniki, Greece, in 1990; the MSc degree in Medical Physics (with distinction) from the University of Surrey, UK, in 1991; and the PhD degree from the Aristotle University of Thessaloniki, Greece, in 1996. In 1998, he joined the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland, where he was mainly involved with studying the temperature increase due to the absorption of electromagnetic energy in tissues, and the effect of heat diffusion in electromagnetic dosimetry. He subsequently moved to the Hyperthermia Unit, Erasmus Medical Centre, The Netherlands, where he conducted research on treatment quality of superficial microwave hyperthermia for cancer treatment with a Marie-Curie Fellowship from the European Commission. In December 1999, he returned to the Aristotle University of Thessaloniki, where he is currently an Associate Professor.

His research interests include numerical techniques and computional modelling with applications in biomedical technology and telecommunications, as well as the therapeutic applications and safety of non-ionizing radiation. He is the (co-)author of more than 95 works (h-index 17; total citations 850; source SCOPUS).

He has served as a member of several national and international standardization committees and as the national representative to European research co-ordination actions (BM0704, BM1309, TD1104, EMF-NET). He is currently member of the European Commission's Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) and has been elected for the second time to the Council of the European Bioelectromagnetics Association (EBEA).