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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Journal ArticleDOI
Correlation effects in high-order harmonic generation from finite systems
TL;DR: In this article , the process of high-order harmonic generation (HHG) is modified by beyond mean-field electron-electron correlation for both finite and bulk systems and a finite-size enhancement of the HHG signal is found and attributed to electrons backscattering off the lattice edges.
Journal ArticleDOI
Nonsequential double-recombination high-order-harmonic generation in molecularlike systems
TL;DR: In this paper, the Coulomb-corrected three-step (CC-TSM) model was used to predict the observed NSDR high-harmonic generation (HHG) cutoffs precisely for all internuclear distances.
Journal ArticleDOI
Role of higher excited electronic states on high harmonic generation in H2(+)--a time-independent Hermitian Floquet approach.
TL;DR: The computations reveal signature of significant oscillations in the HHG spectra due to the interference effect of the higher molecular electronic states for all the considered laser intensities and wavelengths.
Journal ArticleDOI
Generation of XUV attosecond pulses in the process of atomic ionization by few-cycle laser radiation
TL;DR: In this article, a model two-electron atom in the presence of a strong field of ultrashort laser pulses is investigated using the numerical integration of the nonstationary Schrodinger equation.
Dissertation
New Development of Theoretical and Computational Methods for Probing Strong-Field Multiphoton Processes
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