High-power, µJ-class Kerr-lens mode-locked thin-disk oscillators at 2.1 µmSergei Tomilov, Mykyta Redkin, Yicheng Wang, Weichao Yao, Anna Suzuki, Martin Hoffmann and Clara J. SaracenoEPJ Web Conf., 307 (2024) 04005DOI: https://doi.org/10.1051/epjconf/202430704005