Abstract
Electron and ion momentum spectra following double ionization by 250 nm laser pulses are numerically obtained for several two-electron systems: a He model atom; the same system without electron-electron interaction; a H- model ion. The two-electron momentum distributions differ qualitatively from system to system. However, the recoil-ion spectra are qualitatively similar. In all cases, they exhibit a peak structure due to above-threshold double ionization.
| Original language | English |
|---|---|
| Pages (from-to) | 487-490 |
| Number of pages | 4 |
| Journal | Laser Physics |
| Volume | 12 |
| Issue number | 2 |
| State | Published - Feb 2002 |
| Externally published | Yes |