1. Alferov University, 8/3 Khlopina, 194021 St. Petersburg, Russia
2. Peter the Great St. Petersburg Polytechnic University, 29 Politehnicheskaya, 195251 St. Petersburg, Russia
3. Ioffe Institute, 26 Politeknicheskaya, 194021 St. Petersburg, Russia
4. Vavilov State Optical Institute, 36-1 Babushkina, 192171 St. Petersburg, Russia