Two-photon double ionization of helium in the region of photon energies 42-50 eV
arXiv:physics/0612093 · doi:10.1103/PhysRevA.75.033411
Abstract
We report the total integrated cross-section (TICS) of two-photon double ionization of helium in the photon energy range from 42 to 50 eV. Our computational procedure relies on a numerical solution of the time-dependent Schrödinger equation on a square-integrable basis and subsequent projection of this solution on a set of final states describing two electrons in continuum. Close to the threshold, we reproduce results previously known from the literature. The region 47-50 eV seems to have been previously unexplored. Our results suggest that TICS, as a function of the photon energy, grows monotonously in the region 42-50 eV. We also present fully resolved triple differential cross sections for selected photon energies.
12 pages, 3 figures
References in corpus (1)
Cited by in corpus (8)
- Nonsequential two-photon double ionization of helium
- A numerical study of two-photon ionization of helium using the Pyprop framework
- Double photo-electron momentum spectra of Helium at infrared wavelength
- Electron correlation in two-photon double ionization of helium from attosecond to FEL pulses
- Time-Dependent B-Spline R-Matrix Approach to Double Ionization of Atoms by XUV Laser Pulses
- Nonsequential Two-Photon Double Ionization of Atoms: Identifying the Mechanism
- Two-photon double ionization with finite pulses: Application of the virtual sequential model to helium
- Coherent driving \emph{versus} decoherent dissipation in double inner-shell ionizations of neon atoms by attosecond pulses