Harmonic generation in ring-shaped molecules

Abstract

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.

15 pages including 7 figures

Cited by in corpus (6)

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• Illuminating Molecular Symmetries with Bicircular High-Order-Harmonic Generation
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• Eliminating artificial boundary conditions in time-dependent density functional theory using Fourier contour deformation
• Harmonic generation by atoms in circularly polarized laser fields: far-off and near resonances regimes