Electron detachment from negative ions in bichromatic laser field

Abstract

Negative ion detachment in two-colour laser field is considered within the recent modification of Keldysh model which makes it quantitatively reliable. The general approach is illustrated by calculation of angular differential detachment rates, partial rates for particular ATD (Above Threshold Detachment) channels and total detachment rates for H${}^{-}$ ion in bichromatic field with 1:2 frequency ratio. Both perturbative and strong field regimes are examined. Polar asymmetry and phase effects are quantitatively characterized with some new features revealed. Phase effects are found to result in a huge anisotropy factor $\sim 10^3$ in the electron angular distribution in the perturbative regime.

13 pages, 8 figures in separate files which are not incorporated in the latex file of the paper

References in corpus (1)

• Multiphoton detachment of electrons from negative ions

Cited by in corpus (7)

• Quantum theory of a high harmonic generation as a three-step process
• Multiphoton radiative recombination of electron assisted by laser field
• Effective ATI Channels in High Harmonic Generation
• Quantum Theory of High Harmonic Generation via Above Threshold Ionization and Stimulated Recombination
• Two-photon detachment of electrons from halogen negative ions
• Adiabatic Theory of Electron Detachment from Negative Ions in Two-Color Laser Field
• Photoelectron spectra in strong-field ionization by a high frequency field