A numerical ab initio study of harmonic generation from a ring-shaped model molecule in laser fields

Details A numerical ab initio study of harmonic generation from a ring-shaped model molecule in laser fields A numerical ab initio study of harmonic generation from a ring-shaped model molecule in laser fields

2001-01-29

arxiv.org/abs/physics/0101097v1

Physics

Atomic Physics

5 pages, 3 figures

Scientific paper

10.1017/S0263034601191135

When a laser pulse impinges on a molecule which is invariant under certain symmetry operations selection rules for harmonic generation (HG) arise. In other words: symmetry controls which channels are open for the deposition and emission of laser energy---with the possible application of filtering or amplification. We review the derivation of HG selection rules and study numerically the interaction of laser pulses with an effectively one-dimensional ring-shaped model molecule. The harmonic yields obtained from that model and their dependence on laser frequency and intensity are discussed. In a real experiment obvious candidates for such molecules are benzene, other aromatic compounds, or even nanotubes.

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