A.R. Mkrtchyan - Dr. Sc. (Phys.-Math.), academic, Institute of Applied Problems of Physics of NAS RA (Yerevan, Armenia); Professor, National Research Tomsk Polytechnic University E-mail: malpic@sci.am A.S. Bagdasaryan - Dr. Sc. (Eng.), Professor, Main Research Scientist, Kotel-nikov Institute of Radioengineering and Electronics of RAS (Moscow); Radio Research and Development Institute (Moscow) E-mail: bagdassarian@mail.ru S.H. Khlopuzyan - Research Scientist, Institute of Applied Problems of Physics of NAS RA (Yerevan, Armenia) V.R. Kocharyan - Research Scientist, Institute of Applied Problems of Physics of NAS RA (Yerevan, Armenia); Na-tional Research Tomsk Polytechnic University E-mail: vahan2@yandex.ru

N.S. Zhukova1, A.Е. Ganzha2, М.А. Knyazeva3, N.А. Arkhipov4, А.V. Filimonov5, А.S. Goltaev6, А.V. Pavlenko7, R.G. Burkovsky8

1-5,8 Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia)

6 Alferov University (St. Petersburg, Russia)

7 Research Institute of Physics Southern Federal University (Rostov-on-Don, Russia)

1 zhukovaaa3781@gmail.com; 2 alexander.ganzha@gmail.com; 3 kniazeva.maria225@yandex.ru; 4 nick10arkh@mail.ru; 5 filalex@inbox.ru; 6 goltaev@goltaev.ru; 7 tolik_260686@mail.ru; 8 roman.burkovsky@gmail.com

B. Balbashio1, A.A. Skrylev2, D.V. Shestakov3, L.M. Vinogradova4, I.S. Belokon5, A.V. Nezhdanov6, A.I. Mashin7

1–7 Lobachevsky National Research Nizhny Novgorod State University (Nizjni Novgorod, Russia)
1 bbalbasi@gmail.com, 2 skrylev.lexa@mail.ru, 3 danil.shestakov@unn.ru, 4 lidiya.vinogradova@unn.ru, 5 belocon.11.do@gmail.com, 6 nezhdanov@phys.unn.ru, 7 mashin@unn.ru