Complete Photoionization Experiments via Ultrafast Coherent Control with Polarization Multiplexing II: Numerics & Analysis Methodologies

TL;DR

This paper advances the numerical and analytical techniques for complete photoionization experiments using polarization-shaped pulses, validated through comparison with tomographic photoelectron measurements, enhancing understanding of photoionization processes.

Contribution

It introduces detailed numerical and analysis methodologies for polarization multiplexing in photoionization, extending previous work and validating results with new tomographic measurements.

Findings

Numerical methods effectively determine photoionization matrix elements.

Comparison with tomographic data confirms validity of the analysis.

Discussion of physics and future prospects of the methodology.

Abstract

The feasibility of complete photoionization experiments, in which the full set of photoionization matrix elements are determined, using multiphoton ionization schemes with polarization-shaped pulses has recently been demonstrated [Hockett et. al., Phys. Rev. Lett. 112, 223001 (2014)]. Here we extend on our previous work to discuss further details of the numerics and analysis methodology utilised, and compare the results directly to new tomographic photoelectron measurements, which provide a more sensitive test of the validity of the results. In so doing we discuss in detail the physics of the photoionziation process, and suggest various avenues and prospects for this coherent multiplexing methodology.