1. Optoelectronics
Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, FI 33720 Tampere, Finland
2. ITMO University, Kronverkskiy
pr. 49, 197101 St.
Petersburg, Russia
3. St. Petersburg Academic University, Khlopina 8/3, 194021 St. Petersburg, Russia
4. Ioffe Physical Technical Institute of the Russian Academy of Sciences, Politekhnicheskaya 26, 194021 St. Petersburg, Russia