Abstract
We investigate the effect of intramolecular interference in the high-order harmonic generation (HHG) from oriented asymmetric diatomic molecules interacting strongly with a laser field numerically. We focus on the two-center--interference-induced minimum in the two HHG channels of odd and even harmonics. As the interference usually results in a well-defined minimum for symmetric molecules, the odd or even HHG spectra of asymmetric molecules do not show a pronounced minimum in our simulations. We show that the interplay of different recombination routes, arising from the asymmetry of the molecule, significantly influences the minimum. A scheme is proposed to identify the interference effect in the odd versus even HHG spectra for diverse molecular parameters.
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