High-order harmonic generation in light molecules: moving-nuclei semiclassical simulations

摘要

A simple semiclassical approach has been proposed recently to describe the strong-field phenomena in molecules beyond the Bom-Oppenheimer approximation. We use this approach to study high harmonic generation in molecules with moving nuclei. We study how the competition between rotational, vibrational, and electronic excitation, as well as dissociation and ionization, influence the harmonic spectra from light molecules. The possibilities to use the nuclear motion to control the spectral shape and temporal confinement of harmonic radiation are discussed.