Nondipole photoelectron momentum shifts in strong-field ionization with mid-infrared laser pulses of long duration
- 18 August 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 54 (16), 165602
- https://doi.org/10.1088/1361-6455/ac20e2
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 (ATI) channels and (ii) a redistribution in the continuum population on each ring. In this manner, the photoelectron energy in a given ATI channel depends on the direction of the ejected electron.Funding Information
- The Danish Council for Independent Research (9040-00001B)
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