Abstract
We consider the process of high-order harmonics generation (HHG) in the xenon atom enhanced by the intershell correlation between the valence 5p and inner 4d shells. We derive the HHG spectrum from a numerical solution of the one-electron time-dependent Schrödinger equation multiplied by the enhancement factor taken as the photoionization cross-sections ratio calculated with and without the intershell correlation. Such a simplified approach is adequate to describe the experimental HHG spectrum reported by Shiner et al. [Nat. Phys. 7, 464 (2011)1745-247310.1038/nphys1940] generated by a single color IR laser. Similarly, we find good agreement when applied to the two-color driven HHG spectra reported by Faccialá et al. [Phys. Rev. Lett. 117, 093902 (2016)PRLTAO0031-900710.1103/PhysRevLett.117.093902].
Original language | English |
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Article number | 013404 |
Journal | Physical Review A |
Volume | 100 |
Issue number | 1 |
DOIs | |
Publication status | Published - 9 Jul 2019 |