Affiliation: | (1) Bryansk State University, Bryansk, 241036, Russia;(2) Scientific Center of Laser Materials and Technologies, Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991, Russia;(3) Kazan State University, Kazan, 420008, Russia;(4) Research Institute of Optical Materials Technology, Vavilov State Optical Institute, All-Russia Scientific Center, St. Petersburg, 192171, Russia |