Correlation enhancement of high-order harmonics generation in Xe
Atomic Physics
2019-07-17 v3
Abstract
We consider the process of high-order harmonics generation (HHG) in the xenon atom enhanced by the inter-shell correlation between the valence 5p and inner 4d shells. We derive the HHG spectrum from a numerical solution of the one-electron time-dependent Schr\"odinger equation multiplied by the enhancement factor taken as the photoionization cross-sections ratio calculated with and without the inter-shell correlation. Such a simplified approach is adequate to describe the experimental HHG spectrum reported by Shiner et al [Nat. Phys. 7, 464 (2011)] generated by a single color IR laser. Similarly, we find good agreement when applied to the two-color driven HHG spectra reported by Facciala et al [Phys. Rev. Lett. 117, 093902 (2016)].
Keywords
Cite
@article{arxiv.1904.08044,
title = {Correlation enhancement of high-order harmonics generation in Xe},
author = {Alexander W. Bray and David Freeman and Sebastian Eckart and Anatoli S. Kheifets},
journal= {arXiv preprint arXiv:1904.08044},
year = {2019}
}