A.M. Zotov - Ph.D. (Phys.-Math.), Senior Researcher, Department of Optics and Spectroscopy, Physics Faculty of Moscow State University
E.G. Kim - Student, Department of Optics and Spectroscopy, Physics Faculty of Moscow State University
P.V. Korolenko - Dr.Sc. (Phys.-Math.), Professor, Department of Optics and Spectroscopy, Physics Faculty of Moscow State University
Yu.V. Ryzhikova - Ph.D. (Phys.-Math.), Researcher, Department of Optics and Spectroscopy, Physics Faculty of Moscow State University