G. V. Kulak
Mozyr State Pedagogical University named after I. P. Shamyakin
Belarus

Gennadii V. Kulak – Dr. Sc. (Physics and Mathematics), Professor, Professor of the Department of Physics and Mathematics

28, Studentskaya Str., 247760, Mozyr

P. I. Ropot
B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus

Peter I. Ropot – Ph. D. (Physics and Mathematics), Associate Professor, Leading Researcher

68-2, Nezavisimosti Ave., 220072, Minsk

O. V. Shakin
State University of Aerospace Instrumentation
Russian Federation

Oleg V. Shakin – Dr. Sc. (Engineering), Professor, Professor of the Department of Design and Technology of Electronic and Laser Means

67, Bol’shaya Morskaya Str., 190000, Saint Petersburg