P.A. Kondratovich1, Yu.E. Korchagin2, A.V. Tuchin3, K.D. Titov4

1–4 Voronezh State University (Voronezh, Russia)
1 pkondr@mail.ru, kondratovich.pa@gmail.com, 2 korchagin@phys.vsu.ru, 3 24in@mail.ru, 4 titovkd@bk.ru