Atomic processes in bicircular fields

Abstract

Various laser-induced and laser-assisted processes in atoms exposed to bicircular fields are investigated. The strong-field ionization process is exemplified by the direct and by the high-order above-threshold detachment of negative fluorine ions both for corotating and counterrotating bicircular fields. The symmetries of the electron distributions in the momentum plane are analyzed in detail. The results for laser-assisted electron-ion recombination and for high-order harmonic generation are presented for the bicircular field with counterrotating components.

Keywords:

• Bicircular field
• excess photon detachment
• above-threshold ionization
• electron-ion recombination
• high-order harmonic generation

Notes

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was Support by the Federal Ministry of Education and Science, Bosnia and Herzegovina is gratefully acknowledged. This work was also supported in part by the Deutsche Forschungsgemeinschaft within the Priority Programme Quantum Dynamics in Tailored Intense Fields (QUTIF).