The Laboratory Interactions, Dynamics and Lasers - LIDYL - is a research laboratory associated with the CEA and the CNRS within the Paris-Saclay University.

The research program carried out at LIDYL aims at understanding the fundamental processes involved in light-matter interactions and their applications. The researchers develop and use laser-based light and particle sources to investigate a variety of phenomena and systems ranging from attosecond electron dynamics in the simplest atomic and molecular species to relativistic laser-induced plasmas, going through ultrafast spin dynamics in solids and the development of innovative candidates for new radiation therapies.