Dr. Maria Gioti is an Associate Professor at the Department of Condensed Matter and Materials Physics, School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki. She is a specialist in thin film processes, in situ and real-time monitoring with optical techniques and in optical properties using Ellipsometric techniques from IR to UV range. She is experienced in the modelling of the optical properties of metallic/semi-conducting/insulating bulk materials and the optics in thin films, displays, and PV devices. She has authored/co-authored more than 70 publications in international peer-reviewed journals.