Bio
Nikolaos L. Tsitsas received the Diploma and Ph.D. degree in electrical engineering from the National Technical University of Athens (NTUA) in 2002 and 2006, respectively, and the M.Sc. degree in applied mathematics from the National and Kapodistrian University of Athens in 2005. From 2008 to 2011, he was an Adjunct Lecturer with the School of Applied Mathematical and Physical Sciences, NTUA. From 2009 to 2011, he was an Adjunct Lecturer with the Hellenic Army Academy. Since 2012, he has been with the School of Informatics, Aristotle University of Thessaloniki, Greece, where he is currently an Associate Professor. He is the author or co-author of 77 papers in scientific journals and over 70 papers in conference proceedings. His research is focused on methodologies of applied mathematics in direct and inverse wave scattering and propagation theory. Dr. Tsitsas is a member of the American Mathematical Society (AMS) and the Technical Chamber of Greece as well as a Senior Member of the Optical Society of America (OSA), the Institute of Electrical and Electronic Engineers (IEEE), and the Union Radio-Scientifique Internationale (URSI).

Bio
Mario Lucido received the Laurea degree (summa cum laude) in electronic engineering from the University of Napoli “Federico II”, Naples, Italy, in 2000 and the Ph.D. degree in electrical and telecommunication engineering from the University of Cassino and Southern Lazio (UNICAS), Cassino, Italy, in 2004. He was Researcher and Adjunct Professor of Electromagnetic fields from April 2005 to January 2022 at UNICAS where he has been Associate Professor since January 2022. He is currently a Senior Member of the Institute of Electrical and Electronic Engineers (IEEE) and of the International Union of Radio Science (URSI). He serves as a Member of the International Advisory Board of the Editorial Board of Radiophysics and Electronics Journal, Associate Editor of IET Microwave, Antennas & Propagation (IET-MAP), and Member of the Editorial Board of Applied Sciences. He received the “Giorgio Barzilai” Prize for the Best Young Scientist Paper at the Italian National Congress on Electromagnetics (RiNEm) in 2006 and the “Volodymyr G. Sologub” senior researcher award for contribution to the development of analytical regularization methods in computational electromagnetics at the XVI IEEE International Conference on Mathematical Methods in Electromagnetic Theory (MMET) in 2016. He has authored about 100 scientific journal articles and conference papers. His research interests include semi-analytical techniques for the analysis of scattering problems, waveguide and optical waveguide propagation, microwave circuits, microstrip antennas, open resonators.

Bio
Ari Sihvola received the degree of Doctor of Technology in 1987 from the Helsinki University of Technology, Finland (presently Aalto University). Besides working for TKK, Aalto, and the Academy of Finland, he was visiting engineer in the Research Laboratory of Electronics of the Massachusetts Institute of Technology, Cambridge, in 1985–1986. In 1990–1991, he worked as a visiting scientist at the Pennsylvania State University, State College. In 1996, he was visiting scientist at the Lund University, Sweden. He was visiting professor at the Electromagnetics and Acoustics Laboratory of the Swiss Federal Institute of Technology, Lausanne (academic year 2000–01), in the University of Paris 11, in Orsay (June 2008), and in the University of Rome La Sapienza (May–June 2015). His research interests include waves and fields in electromagnetics, modeling of complex media and metamaterials, remote sensing, education in physics and engineering, and history of electrical engineering. He is presently professor in the School of Electrical Engineering at the Aalto University. Ari Sihvola is Vice President of the International Union of Radio Science (URSI).