Towards broadband two-Dimensional electronic spectroscopy with ~8 fs phase-locked pulses at 400 nm Damianos Agathangelou, Youssef El-Khoury, Johanna Brazard, Olivier Crégut, Stefan Haacke, Giulio Cerullo and Jérémie Léonard EPJ Web Conf., 205 (2019) 03006 Published online: 16 April 2019 DOI: 10.1051/epjconf/201920503006