1. Technological Institute for Superhard and Novel Carbon Materials, 7a Tsentralnaya, 108840 Troitsk, Moscow, Russia
2. Phystech School of Electronics, Photonics and Molecular Physics, Moscow Institute of Physics and Technology Institutskiy per. 9, 141700 Dolgoprudny, Moscow, Russia
3. Scientific and Technological Center of Unique Instrumentation, Russian Academy of Sciences, Butlerova Str. 15, 117342 Moscow, Russia
4. Institute of Spectroscopy RAS, Fizicheskaya Str. 5, 108840 Troitsk, Moscow, Russia
5. Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, Bld. 1, 121025 Moscow, Russia