High Harmonic Generation with 170 W and 250 MW thin-disk laser-oscillator Moinuddin Kadiwala, Yasmin Kopp, Semyon Goncharov, Nazar Kovalenko and Oleg Pronin EPJ Web Conf., 307 (2024) 04007 Published online: 18 October 2024 DOI: 10.1051/epjconf/202430704007