1. Vilnius University, Faculty of Physics, Sauletekio av. 9, LT-10222 Vilnius, Lithuania
2. Research Institute for Nuclear Problems of Belarusian State University (INP BSU), NanoElectroMagnetics Lab, Bobruiskaya Street, 11 Minsk 220030, BelaruscTomsk State University, Radiophysics faculty, Tomsk 634050, Russian Federation
3. IJL–UMR Université de Lorraine–CNRS, 7198, ENSTIB, 27 Rue Philippe Seguin, CS 60036, 88026 Epinal Cédex, France