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

Published online by Cambridge University Press:  30 July 2001

D. BAUER  and
F. CECCHERINI
D. BAUER
Affiliation:
Theoretical Quantum Electronics (TQE), Darmstadt University of Technology, Hochschulstr. 4A, D-64289 Darmstadt, Germany
F. CECCHERINI
Affiliation:
Theoretical Quantum Electronics (TQE), Darmstadt University of Technology, Hochschulstr. 4A, D-64289 Darmstadt, Germany
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Abstract

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.

Type
Research Article
Information
Laser and Particle Beams , Volume 19 , Issue 1 , January 2001 , pp. 85 - 90
Copyright
© 2001 Cambridge University Press

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