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arXiv · 1005.1602

Alignment-Dependent Ionization of N$_2$, O$_2$, and CO$_2$ in Intense Laser Fields

Simon Petretti·Yulian V. Vanne·Alejandro Saenz·Alberto Castro·Piero Decleva
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Abstract

The ionization probability of N$_2$, O$_2$, and CO$_2$ in intense laser fields is studied theoretically as a function of the alignment angle by solving the time-dependent Schr\"odinger equation numerically assuming only the single-active-electron approximation. The results are compared to recent experimental data [D.~Pavi{\v{c}}i{\'c} et al., Phys.\,Rev.\,Lett.\ {\bf 98}, 243001 (2007)] and good agreement is found for N$_2$ and O$_2$. For CO$_2$ a possible explanation is provided for the failure of simplified single-active-electron models to reproduce the experimentally observed narrow ionization distribution. It is based on a field-induced coherent core-trapping effect.

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Simon Petretti, Yulian V. Vanne, Alejandro Saenz, Alberto Castro, Piero Decleva. 2010-05-10. Alignment-Dependent Ionization of N$_2$, O$_2$, and CO$_2$ in Intense Laser Fields. https://doi.org/10.1103/physrevlett.104.223001

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