1. Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, Moscow, Russia
2. Kotelnikov Institute of Radioengineering and Electronics (Fryazino Branch), Russian Academy of Sciences, Fryazino, Moscow Region, Russia
3. G. G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, Russia