A. A. Ryzhevich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus; Belarusian State University
Belarus

Anatol A. Ryzhevich – Ph. D. (Physics and Mathematics), Leading Researcher B. I. Stepanov Institute of Phy- sics of the National Academy of Sciences of Belarus; Associate Professor of the Department of Quantum Radiophysics and Optoelectronics, Belarusian State University 

68-2, Nezavisimosti Ave., 220072, Minsk,

4, Nezavisimosti Ave., 220030, Minsk

I. V. Balykin
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus

Igor V. Balykin – Researcher

68-2, Nezavisimosti Ave., 220072, Minsk

T. A. Zheleznyakova
Belarusian State University
Belarus

Tatyana A. Zheleznyakova – Ph. D. (Physics and Mathematics), Associate Professor at the Department of Physics and Aerospace Technologies

4, Nezavisimosti Ave., 220030, Minsk

N. S. Kazak
SSPA “Optics, Optoelectronics and Laser Technology”
Belarus

Nikolai S. Kazak – Academician of the National Academy of Sciences of Belarus, Dr. Sc. (Physics and Mathematics), Scientific Consultant 

68-1, Nezavisimosti Ave., 220072, Minsk