1. ELI Beamlines Facility, Extreme Light Infrastructure ERIC 1 , Za Radnicí 835, 25241 Dolní Břežany, Czech Republic
2. Department of Physics and NTIS–European Centre of Excellence, University of West Bohemia 2 , Univerzitní 8, 306 14 Plzeň, Czech Republic
3. York Plasma Institute, Department of Physics, University of York 3 , Heslington, York, North Yorkshire YO10 5DD, United Kingdom