This Letter presents the first quantitative assessment of the recently proposed metastable electronic state approach (MESA) for calculation of the nonlinear optical response of noble gas atoms. Based on the single active electron potentials for several atomic species, Stark resonant states are used to extract the nonlinear polarization and ionization rates free of any additional fitting parameters. It is shown that even the simplest version of the method provides a viable, firstprinciple- based, and self-consistent alternative to the standard model commonly used for simulations in the field of extreme nonlinear optics.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics