Non-sequential double ionization of molecules in a strong laser field

Details Non-sequential double ionization of molecules in a strong laser field Non-sequential double ionization of molecules in a strong laser field

2004-10-11

arxiv.org/abs/physics/0410065v1

Las. Phys. 15, 497 (2005)

Physics

Atomic Physics

5 pages, 3 figures, Conference proceedings from 13th International Laser Physics Workshop, Triest, Italy, July 12-16, 2004

Scientific paper

We consider the final stage of double ionization of $\rm O_2$ molecules by short linearly polarized laser pulses. The saddles of the effective adiabatic potential energy close to which simultaneous escape of electrons from a molecule takes place are identified. The analysis of the saddles and numerical simulations of the ionization indicate that to observe clear signatures of simultaneous electron escape in double ionization of $\rm O_2$ molecules stronger and much shorter laser pulses than those used in the recent experiment [E. Eremina, {\it et al}, Phys. Rev. Lett. {\bf 92}, 173001 (2004)] should be applied.

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