Ultrafast exciton dynamics reconstruction with a ptychographic approachGian Luca Dolso, Bruno Moio, Giacomo Inzani, Nicola Di Palo, Rocío Borrego-Varillas, Mauro Nisoli and Matteo LucchiniEPJ Web Conf., 255 (2021) 13005DOI: https://doi.org/10.1051/epjconf/202125513005