Journal ArticleDOI
Interference effects in high-order harmonic generation with molecules
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TLDR
In this article, high-order harmonic generation for molecules in linearly polarized laser pulses by numerical solution of the Schr\"odinger equation was studied and maxima and minima due to intramolecular interference were found in the dependence of the harmonic intensities on the internuclear distance and on the orientation of the molecules.Abstract:
We study high-order harmonic generation for ${\mathrm{H}}_{2}^{+}$ and ${\mathrm{H}}_{2}$ model molecules in linearly polarized laser pulses by numerical solution of the Schr\"odinger equation. Maxima and minima due to intramolecular interference are found in the dependence of the harmonic intensities on the internuclear distance and on the orientation of the molecules. These extrema can be approximately predicted by regarding them as the result of interference between two radiating point sources located at the positions of the nuclei.read more
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High harmonic generation and the role of atomic orbital wave functions.
TL;DR: The amplitude of the continuum electron wave packet versus kinetic energy is derived and is shown to be largely independent of the atom, in agreement with models of tunnel ionization.
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High-order harmonic spectroscopy of the Cooper minimum in argon: Experimental and theoretical study
J. Higuet,H. Ruf,Nicolas Thiré,Raluca Cireasa,Eric Constant,Eric Cormier,Dominique Descamps,Eric Mével,Stéphane Petit,Bernard Pons,Yann Mairesse,Baptiste Fabre +11 more
TL;DR: In this article, the Cooper minimum in high-order-harmonic generation from argon atoms by using long wavelength laser pulses was studied and shown to be systematically shifted with respect to total photoionization cross section measurements.
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Imaging the time-dependent structure of a molecule as it undergoes dynamics
François Légaré,François Légaré,Kevin F. Lee,Kevin F. Lee,Igor Litvinyuk,Igor Litvinyuk,P. W. Dooley,P. W. Dooley,André D. Bandrauk,David M. Villeneuve,Paul B. Corkum +10 more
TL;DR: In this article, the dynamics of diatomic and triatomic molecules with sub-$5\phantom{\rule{0.3em}{0ex}}\mathrm{fs}$ and sub-AA{} resolution were obtained using laser Coulomb explosion imaging with $8
Journal ArticleDOI
Effects of multiple electronic shells on strong-field multiphoton ionization and high-order harmonic generation of diatomic molecules with arbitrary orientation: An all-electron time-dependent density-functional approach
TL;DR: In this article, a time-dependent density-functional theory approach with proper long-range potential for an ab initio study of the effect of correlated multielectron responses on the multiphoton ionization (MPI) and high-order harmonic generation (HHG) of diatomic molecules was presented.