Title

Optical harmonic generation in atomic and molecular hydrogen

Document Type

Article

Publication Date

4-5-1991

Abstract

We compare calculated optical harmonic spectra for the hydrogen molecule and the hydrogen atom in an intense, linearly polarized laser field. The hydrogen atom calculations use an exact, time-dependent method and the hydrogen molecule calculations are performed in a time-dependent Hartree-Fock approximation. In both cases, the laser-matter interaction is treated completely non-perturbatively. We show that if the H2 bond length is stretched so that H2 has the same ionization potential as H, both systems produce remarkably similar harmonic spectra when irradiated with a 1064 nm laser at 1 × 1014 or 2 × 1013 W/cm2. © 1991.

Publication Source (Journal or Book title)

Chemical Physics Letters

First Page

573

Last Page

578

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