Affiliation: | (1) Moscow State University, Leninskie gory, Moscow, 119992, Russia;(2) Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119333, Russia;(3) Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, ul. Tropinina 49, Nizhni Novgorod, 603600, Russia |