Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields
Abstract
The ionization probability of N2, O2, and CO2 in intense laser fields is studied theoretically as a function of the alignment angle by solving the time-dependent Schrödinger equation numerically assuming only the single-active-electron approximation. The results are compared to recent experimental data [D. Pavičić , Phys. Rev. Lett. 98, 243001 (2007)PRLTAO0031-900710.1103/PhysRevLett.98.243001] and good agreement is found for N2 and O2. For CO2 a possible explanation is provided for the failure of simplified single-active-electron models to reproduce the experimentally observed narrow ionization distribution. It is based on a field-induced coherent core-trapping effect.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2010
- DOI:
- 10.1103/PhysRevLett.104.223001
- arXiv:
- arXiv:1005.1602
- Bibcode:
- 2010PhRvL.104v3001P
- Keywords:
-
- 33.20.Xx;
- Spectra induced by strong-field or attosecond laser irradiation;
- Physics - Atomic Physics
- E-Print:
- 5 pages, 2 figures