1. Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
2. Alferov University, 194021 Saint Petersburg, Russia
3. Saint Petersburg Electrotechnical University “LETI”, 197376 Saint Petersburg, Russia
4. Faculty of Physics, St. Petersburg State University, Universitetskaya Emb. 13B, 199034 Saint Petersburg, Russia
5. Kabardino-Balkarian State University Named after H.M. Berbekov, 360004 Nalchik, Russia
6. Laboratory of Advanced Functional Materials, Yerevan State University, 0025 Yerevan, Armenia