Non-sequential double ionization of helium and related wave-function dynamics obtained from a five-dimensional grid calculation
- 26 March 2001
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 8 (7), 417-424
- https://doi.org/10.1364/oe.8.000417
Abstract
Numerical integration of the time-dependent Schrödinger equation for two three-dimensional electrons reveals the behavior of helium in the presence of strong 390 nm and 800 nm light. Non-sequential double ionization is seen to take place predominantly at times when the electric-field component of the light reaches its peak value. Double ionization starts only in the second cycle of a flat-top pulse, and reaches a stable value only after many cycles, showing that recollision, sometimes through very long trajectories, must be involved.Keywords
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