S.V. Kuzikov - Head of Laboratory, Institute of Applied Physics of the RAS, Nizhny Novgorod E-mail: kuzikov@appl.sci-nnov.ru A.A. Vikharev - Research Scientist, Institute of Applied Physics of the RAS, Nizhny Novgorod E-mail: alvikharev@appl.sci-nnov.ru Yu.Yu. Danilov - Senior Research Scientist, Institute of Applied Physics of the RAS, Nizhny Novgorod E-mail: danilov@appl.sci-nnov.ru Yu.V. Rodin - Senior Engineer, Institute of Applied Physics of the RAS, Nizhny Novgorod E-mail: wish26@yandex.ru S.V. Shchelkunov - Research Scientist, Physics Department, Yale University, New Haven, USA E-mail: sergey.shchelkunov@yale.edu