# Nonsequential double-recombination high-order-harmonic generation in molecularlike systems

@article{Hansen2017NonsequentialDH, title={Nonsequential double-recombination high-order-harmonic generation in molecularlike systems}, author={K. Hansen and Lars Bojer Madsen}, journal={Physical Review A}, year={2017}, volume={96} }

We present a study of non-sequential double recombination (NSDR) high harmonic generation (HHG) in a molecular-like system. Using a Coulomb-corrected three-step model we are able to classically describe the observed NSDR HHG cutoffs precisely for all internuclear distances showing an intrinsic dependence on the location of the nuclei in the NSDR HHG process originating partly from the strong electron correlation in the NSDR HHG process. This dependence modifies the classically allowed return…

## 5 Citations

### Finite-system effects on high-order harmonic generation: From atoms to solids

- Physics
- 2018

Using time-dependent density-functional theory, high-harmonic generation (HHG) is studied in one-dimensional structures of sizes from a single nucleus up to hundreds of nuclei. The HHG cutoff is…

### Edge-state and bulklike laser-induced correlation effects in high-harmonic generation from a linear chain

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We explore the significance of laser-induced correlation effects for high-order harmonic generation (HHG) in a linear chain model of a generic band gap material for both single-IR-pulse and…

### High-order harmonic generation in solid slabs beyond the single active electron

- Physics
- 2021

High-harmonic generation by a laser-driven solid slab is simulated using time-dependent density functional theory. Multiple harmonic plateaus up to very high harmonic orders are observed already at…

### High-order harmonic generation in solid slabs beyond the single-active-electron approximation

- Physics
- 2017

High-harmonic generation by a laser-driven solid slab is simulated using time-dependent density functional theory. Multiple harmonic plateaus up to very high harmonic orders are observed already at…

### Contribution of the pre-ionized H2 and the ionized H2+ subsystems to the HHG Spectra of H2 in intense laser fields

- Physics
- 2018

Contributions of the pre-ionized H2 (PI-H2) and ionized H 2 + subsystems of the two-electron H2 system to its high-order harmonic generation in eight-cycle sin2-like ultrafast intense laser pulses…

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