1. DISMI, University of Modena and Reggio Emilia (UNIMORE), 2 via Amendola, Reggio Emilia 41122, Italy
2. Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211, USA
3. HiLASE Centre, Institute of Physics ASCR, Za Radnicí 828, 25241 Dolní Brezany, Czech Republic
4. S.S. Kutateladze Institute of Thermophysics SB RAS, 1 Lavrentyev Ave., Novosibirsk 630090, Russia