%0 Journal Article
%T Harmonic generation in ring-shaped molecules
%A F. Ceccherini
%A D. Bauer
%J Physics
%D 2001
%I arXiv
%R 10.1103/PhysRevA.64.033423
%X We study numerically the interaction between an intense circularly polarized laser field and an electron moving in a potential which has a discrete cylindrical symmetry with respect to the laser pulse propagation direction. This setup serves as a simple model, e.g., for benzene and other aromatic compounds. From general symmetry considerations, within a Floquet approach, selection rules for the harmonic generation [O. Alon Phys. Rev. Lett. 80 3743 (1998)] have been derived recently. Instead, the results we present in this paper have been obtained solving the time-dependent Schroedinger equation ab initio for realistic pulse shapes. We find a rich structure which is not always dominated by the laser harmonics.
%U http://arxiv.org/abs/physics/0102023v2