Funding for this research was provided by:
DFG (PA 730/5)
Bundesministerium fr Bildung und Forschung (project VIP “X-Coherent T” and FSP 301-FLASH)
The Thüringer Aufbaubank (2015FGR0094)
The National Science Centre (2015/19/B/ST3 /00435)
European Union’s Horizon 2020 research and innovation program Laserlab-Europe IV (871124)
The Polish-German research program Beethoven 2 (DFG: PA 730/9-1, NCN: 2016/23/G/ST2/04319)
Article History
Received: 9 January 2021
Accepted: 11 February 2021
First Online: 19 March 2021
Compliance with ethical standards
:
: The authors declare no conflicts of interest.