1. Enhanced ionization of perpendicularly aligned H 2 in intense laser fields
- Author
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Tong, Aihong, Zhou, Yueming, Huang, Cheng, Liao, Qing, and Lu, Peixiang
- Subjects
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IONIZATION (Atomic physics) , *LASERS , *MOLECULAR structure , *DIATOMIC molecules , *PROBABILITY theory , *PULSE generators - Abstract
Abstract: Using three-dimensional classical ensembles, we have investigated the enhancement of double ionization of perpendicularly aligned H 2 molecules by a 800nm laser pulse with intensity ranging from 1×1014 W/cm2 to 6×1014 W/cm2. The simulated results show that double ionization probability of H 2 strongly depends on R and reaches a maximum at an intensity independent critical distance R C ≈5a.u. Furthermore, the enhancement of double ionization is more pronounced in the cases of weaker or stronger fields. These results, a well indication of the influence of molecular structures and laser–molecule interactions on double ionization of diatomic molecules, are analyzed in detail and qualitatively explained based on the field-induced barrier suppression model and back analysis. [Copyright &y& Elsevier]
- Published
- 2011
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