The Laboratoire des Solides Irradiés (LSI) is a joint research unit of the CEA, the CNRS and the École Polytechnique since 2000. It is located on the École Polytechnique site (Palaiseau campus).
The laboratory conducts fundamental research activities in physics and physical chemistry of materials.
Its objective is to study the fundamental properties of the solid state and its interactions with electronic, ionic and photonic radiation. Radiation, whatever its nature, is used as a means of analyzing fundamental processes, but can also, for instance, induce structural modifications. The main goal is to understand the physical properties, functionalities, structure and shape of materials, to control their modifications and to drive the emergence of innovative devices, likely to meet the societal challenges for energy and the environment.
To achieve this, the laboratory has developed multidisciplinary activities based on numerous complementary analytical techniques as well as theoretical and numerical approaches. The scientific work is organized around 3 main themes: