Ion momentum distributions for He single and double ionization in strong laser fields

Journal Article · Fri Nov 01 04:00:00 EST 2002 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.66.053415· OSTI ID:20632329

Chen, J; Nam, C H ^[1]

---

1. Department of Physics and Coherent X-Ray Research Center, Korea Advanced Institute of Science and Technology, Taejon 305-701 (Korea, Republic of)

Using a semiclassical rescattering model, the momentum distributions of recoil ions from laser induced single and double ionization are obtained. Not only in the case of double ionization but also in the case of single ionization, the distributions of the momentum parallel to the polarization direction of the laser field show a double-hump structure as a consequence of the rescattering. By comparing with experimental data we find that, as the intensity of the laser decreases, the rescattering ionization mechanism of the second electron as calculated within our model does not dominate the process. In addition, the correlated emission of the electrons in the double ionization is discussed and the effect of the repulsion between the emitted electrons is shown.

• OSTI ID: 20632329
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 66; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
DISTRIBUTION
ELECTRON EMISSION
ELECTRONS
HELIUM
HELIUM IONS
LASER RADIATION
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
POLARIZATION
RECOILS
RESCATTERING
SEMICLASSICAL APPROXIMATION