Affiliation: | (1) P.N. Lebedev Physical Institute, Russian Academy of Sciences, 53 Leninsky Prospect, Moscow 117924, Russia, RU;(2) Laboratoire de Physique des Lasers, Université Paris-Nord, Institut Galilée, avenue J.-B. Clément, 93430 Villetaneuse, France, FR;(3) Institute of Spectroscopy, Russian Academy of Sciences, Troitsk 142092, Moscow Region, Russia, RU |