The Attochem & SMART-X Winter School on Attosecond Technologies was delivered online from 08/03/2021 to 11/03/2021.

The purpose of this Winter School was to introduce novel attosecond technologies for the study of electron dynamics in molecules and solids, with an emphasis on cutting-edge ultrafast laser sources, novel attosecond pulse generation schemes, attosecond spectroscopy, and advanced detection setups for attosecond experiments. The course was directed to advanced master students, Ph.D. students, and young post-doctoral researchers in attosecond physics, experimental molecular and chemical physics, ultrafast spectroscopy for material science, ultrafast x-ray spectroscopy, and ultrafast laser science, with an interest in novel technological tools to trigger and control attosecond electron dynamics in molecular systems.

Throughout the school we saw 85 participants (67 attendees and 18 lecturer) connected from 17 different countries (Canada; China; Denmark; France; Germany; Greece; Hungary; Iran; Italy; Luxembourg; Netherlands; Portugal; Spain; Sweden; Switzerland; United Kingdom; United States). There were 4 participants form target countries (Hungary; Luxemburg; Portugal).

The event was chaired by Caterina Vozzi, Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche (Italy).

The Organizing Committee was composed as follow:
Lou Barreau, Université Paris-Saclay (France)
Rocio Borrego Varillas, Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche (Italy)
Andrea Trabattoni, Deutsches Elektronen-Synchrotron DESY (Germany) Egle Molotokaite, SMART-X Project Manager, Consiglio Nazionale delle Ricerche (Italy).

The entire event was recorded. The recording are currently available to all the speakers and attendees. The video of the lectures will be publicly available on the COST YouTube channel shortly (after some post-processing).