Affiliation: | (1) St. Petersburg State University of Electrical Engineering, St. Petersburg, 197376, Russia;(2) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(3) Elektron Optronik, St. Petersburg, 194223, Russia;(4) Department of Electronics, Royal Institute of Technology, Electrum 229, SE 164 40 Kista, Sweden;(5) ACREO AB, Electrum 236, SE 164 40 Kista, Sweden |