Wavelength and intensity dependence of multiple forward scattering at above-threshold ionization in mid-infrared strong laser fields

Abstract

The nonperturbative role of multiple forward scattering for Coulomb focusing in mid-infrared laser fields and its dependence on a laser intensity and wavelength are investigated for low-energy photoelectrons at above-threshold ionization. We show that high-order rescattering events can have comparable contributions to the Coulomb focusing and the effective number of rescattering depends weakly on laser parameters in the classical regime. However, the relative contribution of the forward scattering to the Coulomb focusing and the Coulomb focusing in total decrease with the rise of the laser intensity and wavelength.

References in corpus (3)

• Low-Energy Structures in Strong Field Ionization Revealed by Quantum Orbits
• Strong Field Approximation for Systems with Coulomb Interaction
• Origin of Unexpected Low Energy Structure in Photoelectron Spectra Induced by Mid-Infrared Strong Laser Fields

Cited by in corpus (6)

• Slalom in complex time: emergence of low-energy structures in tunnel ionization via complex time contours
• Coulomb focusing at above-threshold ionization in elliptically polarized mid-infrared strong laser fields
• Strong-field photoelectron holography beyond the electric dipole approximation: a semiclassical analysis
• Holographic interferences in strong-field ionization beyond the dipole approximation: The influence of the peak and focal volume averaged laser intensity
• Analytical approach to Coulomb focusing in strong field ionization
• Coulomb focusing in retrapped ionization with near-circularly polarized laser field