Separation of Target Structure and Medium Propagation Effects in High-Harmonic Generation

Abstract

We calculate high-harmonic generation (HHG) by intense infrared lasers in atoms and molecules with the inclusion of macroscopic propagation of the harmonics in the gas medium. We show that the observed experimental spectra can be accurately reproduced theoretically despite that HHG spectra are sensitive to the experimental conditions. We further demonstrate that the simulated (or experimental) HHG spectra can be factored out as a product of a \macroscopic wave packet" and the photo-recombination transition dipole moment where the former depends on the laser properties and the experimental conditions, while the latter is the property of the target only. The factorization makes it possible to extract target structure from experimental HHG spectra, and for ultrafast dynamic imaging of transient molecules.

References in corpus (7)

• Accurate retrieval of structural information from laser-induced photoelectron and high-harmonic spectra by few-cycle laser pulses
• Quantitative Rescattering Theory for high-order harmonic generation from molecules
• Medium propagation effects in high harmonic generation of Ar and N${}_2$
• Probing molecular frame photoionization via laser generated high-order harmonics from aligned molecules
• Polarization and ellipticity of high-order harmonics from aligned molecules generated by linearly polarized intense laser pulses
• Influence of Phase Matching on the Cooper Minimum in Ar High Harmonic Spectra
• Spatial separation of large dynamical blue shift and harmonic generation

Cited by in corpus (7)

• Intensity dependence of multiple orbital contributions and shape resonance in high-order harmonic generation of aligned N${}_2$ molecules}
• Probe of Multi-electron Dynamics in Xenon by Caustics in High Order Harmonic Generation
• Generation of isolated attosecond pulses in the far field by spatial filtering with an intense few-cycle mid-infrared laser
• Analysis of effects of macroscopic propagation and multiple molecular orbitals on the minimum in high-order harmonic generation of aligned CO${}_2$
• High-order-harmonic generation in benzene with linearly and circularly polarised laser pulses
• Influence of gas pressure on high-order harmonic generation of Ar and Ne
• Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers