Nondipole photoelectron momentum shifts in strong-field ionization with mid-infrared laser pulses of long duration

Abstract

We consider atomic strong-field ionization in the long-pulse limit for linearly polarized infrared laser fields. We show how nondipole effects in the plane formed by the propagation and polarization directions lead to (i) a shift of the origin of the rings describing the energetically allowed final electron momenta for individual above-threshold ionization channels and (ii) a redistribution in the continuum population on each ring.

Photoelectron energy peaks shift against the radiation pressure in strong field ionization

“…leading to Eq. (3) which spawned further theoretical work by Böning et al, Jensen et al, Lund and Madsen, as well as Brennecke and Lein [10][11][12][13]. …”