1. Faculty of Physics, M. V. Lomonosov Moscow State University, 1, Building 2, Leninskie Gory, Moscow 119991, Russian Federation
2. A. M. Prokhorov General Physics Institute of the Russian Academy of Sciences, 38, Vavilov Street, Moscow 119991, Russian Federation
3. National Research Nuclear University MEPhI, 31, Kashirskoye Shosse, Moscow 115409, Russian Federation
4. Department of Chemistry, M. V. Lomonosov Moscow State University, 1, Building 3, Leninskie Gory, Moscow 119991, Russian Federation
5. Adámas Nanotechnologies, Inc., 8100 Brownleigh Drive, Raleigh, North Carolina 27617, United States