Download or read book Molecules Interacting with Short and Intense Laser Pulses written by Marie Labeye and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we study different aspects of the ultrafast dynamics of atoms and molecules triggered by intense and short infrared laser pulses. Highly non-linear processes like tunnel ionization, high order harmonic generation and above threshold ionization are investigated. Two different and complementary approaches are used. On the one hand we construct approximate analytical models to get physical insight on these processes. On the other hand, these models are supported by the results of accurate numerical simulations that explicitly solve the time dependent Schrödinger equation for simple benchmark models in reduced dimensions. A numerical method based on time dependent configuration interaction is investigated to describe larger and more more complex systems with several electrons.