Twisted quantum interference in photoelectron holography with
elliptically polarized fields
- URL: http://arxiv.org/abs/2207.07464v1
- Date: Fri, 15 Jul 2022 13:16:43 GMT
- Title: Twisted quantum interference in photoelectron holography with
elliptically polarized fields
- Authors: G. Kim, C. Hofmann, A. S. Maxwell, C. Figueira de Morisson Faria
- Abstract summary: We perform a systematic analysis of how ultrafast photoelectron holography is influenced by an elliptically polarized field.
We find that the interplay of the external field and the binding potential leads to twisted holographic patterns for low ellipticities and recover well-known angular offsets for high ellipticities.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We perform a systematic analysis of how ultrafast photoelectron holography is
influenced by an elliptically polarized field, with emphasis on quantum
interference effects. We find that the interplay of the external field and the
binding potential leads to twisted holographic patterns for low ellipticities
and recover well-known angular offsets for high ellipticities. Using the
Coulomb quantum-orbit strong-field approximation (CQSFA), we assess how the
field ellipticity affects specific holographic patterns, such as the fan and
the spider. The interplay of the external field and the binding potential leads
to twisted holographic patterns in the fan, and to loss of contrast in the
spider. This behavior can be traced back to interfering electron trajectories,
and unequal changes in tunneling probability due to non-vanishing ellipticity.
We also derive tunneling times analytically using the strong-field
approximation (SFA), provide estimates for ellipticy ranges for which
interference is expected to be prominent, and discuss how to construct
continuous electron momentum distributions exploring the rotation symmetry
around the origin.
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