Abstract
Single and double ionization of magnesium and calcium atoms following Nd: YAG laser multiphoton excitation at 1064 and 532 nm have been studied by employing pulses of 35 ps and 200 ps duration at intensities of the order of 1010-2×1013 W/cm2. The dependence of ion formation on the laser intensity has been measured and the slopes of the linear parts of the log-log plots and the ratios of saturation intensities for two pulse durations have been compared with the predictions of the scaling law. No evidence for a pure direct double ionization process has been obtained. © 1991 Springer-Verlag.
| Original language | English |
|---|---|
| Journal | Zeitschrift für Physik D: Atoms, Molecules and Clusters |
| Volume | 21 |
| Issue number | 4 |
| Pages (from-to) | 299-305 |
| Number of pages | 7 |
| ISSN | 1434-6060 |
| DOIs | |
| Publication status | Published - 12.1991 |
| Externally published | Yes |
Research areas and keywords
- 32.80. Wr
- 32.80.Rm
- Engineering
ASJC Scopus Subject Areas
- Atomic and Molecular Physics, and Optics
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