1. a Department of Physics and Institute for Quantum Studies , Texas A&M University , College Station, TX, 77843-4242, USA
2. c Research Physical-Technical Institute of the Nizhny Novgorod State University , 23 Gagarin av, Nizhny Novgorod, 603000, Russia
3. b Institute for Physics of Microstructures , Russian Academy of Science , GSP-120, Nizhny Novgorod, 603950, Russia
4. d Institute of Applied Physics , Russian Academy of Science , 46 Ulyanov Str, Nizhny Novgorod, 603950, Russia
5. e Departments of Mechanical & Aerospace Engineering and Chemistry , Princeton University , Princeton, USA