Dr. George K. Varotsos was born in Athens, Greece. He received the M.Sc. degree in Electronics and Telecommunication Systems in 2014 and the Ph.D. degree in 2018 from the Department of Electronics, Computers and Control, Faculty of Physics, National and Kapodistrian University of Athens, Athens, Greece. He has authored or co-authored 10 journal and more than 15 international conference papers. His current research interests include Terrestrial Free Space Optical (FSO) communication systems, underwater optical wireless communications, transdermal optical wireless communications, visible light communications, energy harvesting, wireless power transfer as well as numerical and simulation methods.