1. Lebedev Physical Institute, 119991 Moscow, Russia
2. ITMO University, 197101 St. Petersburg, Russia
3. Ioffe Institute, 194021 St. Petersburg, Russia
4. Peter the Great Politechnical University, 195251 St. Petersburg, Russia
5. Technological Institute for Superhard and Novel Carbon Materials, Troitsk, 108840 Moscow, Russia
6. Moscow Institute of Physics and Technology, Dolgoprudny, 141701 Moscow, Russia
7. National University of Science and Technology MISiS, 194017 Moscow, Russia
8. The All-Russian Research Institute for Optical and Physical Measurements, 119361 Moscow, Russia