6533b7d2fe1ef96bd125e976
RESEARCH PRODUCT
The influence of the quantum nature of nuclei in high harmonic generation from H+2-like molecular ions
Giuseppe CastigliaPietro Paolo CorsoFrancesca MoralesBiagio FrusteriRosalba DanieleEmilio Fiordilinosubject
PhysicsField (physics)Quantum dynamicsCondensed Matter PhysicsAntibonding molecular orbitalIndustrial and Manufacturing EngineeringAtomic and Molecular Physics and OpticsIonHarmonicsHigh harmonic generationAtomic physicsInstrumentationQuantumOrder of magnitudedescription
We study the full quantum dynamics of a simple molecular ion driven by an intense laser field. In particular we show that the quantum nature of the nuclear dynamics affects the emitted high harmonic generation (HHG) spectra, strongly reshaping the plateau region. In fact, it is evident that the characteristic flat trend is transformed into a descending trend, with the lower harmonics being two orders of magnitude more intense than the higher harmonics. We show that this effect is more pronounced in the lighter isotopic species of H2+ molecular ions and we also demonstrate that in this case the contribution to HHG from the antibonding electronic energetic surface is of the same order of magnitude as that from the bonding state.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-08-02 | Laser Physics |