Author Affiliations M. S. Pochechuev,1,5 A. A. Lanin,1,3 I. V. Kelmanson,4,10 D. S. Bilan,4,10 D. A. Kotova,4 A. S. Chebotarev,1 V. Tarabykin,7,8 A. B. Fedotov,1,3 V. V. Belousov,4,9,10 and A. M. Zheltikov1,2,3,5,6,* 1Physics Department, International Laser Center, M.V. Lomonosov Moscow State University, Moscow 119992, Russia 2Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA 3Russian Quantum Center, ul. Novaya 100, Skolkovo, Moscow Region, 143025, Russia 4M. M.
