Strong-field ionization of atoms and molecules: The two-term saddle point method

Abstract

We derive an analytical formula for the ionization rate of neutral atoms and molecules in a strong monochromatic field. Our model is based on the strong-field approximation with transition amplitudes calculated by an extended saddle point method. We show that the present two-term saddle point method reproduces even complicated structures in angular resolved photo electron spectra.

References in corpus (1)

• High-harmonic generation from arbitrarily oriented diatomic molecules including nuclear motion and field-free alignment

Cited by in corpus (1)

• Effects of orientation and alignment in high-harmonic generation and above threshold ionization