Stéphane Valette is a physicist and obtained his PhD on the study of the laser-materials interaction in the case of femtosecond laser pulses. Since his arrival at École Centrale de Lyon in 2005, his teaching activities address Solid-State Physics and Materials Science. His teaching activities are involved in the three-year courses at École Centrale de Lyon. He carries out his research activities within the Tribology and System Dynamics Laboratory (LTDS) on the study of the consequences of surface texturing by femtosecond laser. He mainly focuses on the properties of wetting, adhesion and wear resistance of textured surfaces. He heads the axis 1 (“hierarchical surfaces”) of the MANUTECH-SISE Laboratory. One of its objectives is to understand the multi-scale roughness effects on the previous properties.