Physique et chimie femtoseconde-attoseconde / Femtosecond-attosecond physics and chemistry

While the pulse durations of infrared lasers are reaching the fundamental limitation imposed by the duration of the optical cycle (a few femtoseconds), High-order Harmonic Generation has recently opened a new field by accessing the attosecond regime (1as = 10-18 s). HHG spectra are made of lines corresponding to the odd multiples of the fundamental laser frequency, and can cover a very broad spectral range, from visible light to soft X-rays.

Interaction rayonnement-matière

Lumière - Photosciences : La lumière intervient directement dans de nombreux processus physiques et chimiques ; elle est aussi un formidable outil d’investigation de la matière sous toutes ses formes. Les photosciences à l'IRAMIS recouvrent l’ensemble des études qui considèrent l’interaction lumière-matière en tant que processus fondamental et outil d’analyse.