1. Voronezh State University, Department of Optics and Spectroscopy, Voronezh, Russia
2. Voronezh State University of Engineering Technologies, Voronezh, Russia
3. Bauman Moscow State Technical University, Moscow, Russia
4. P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
5. Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Oblast, Russia