Coherent Control of Photoelectron Wavepacket Angular Interferograms

TL;DR

This paper explores how polarization-shaped laser pulses can coherently control photoelectron wavepacket interferograms, revealing detailed polarization sensitivities and proposing applications in multiplexed quantum metrology.

Contribution

It provides a detailed computational analysis of polarization multiplexing in photoelectron interferograms and introduces its potential for advanced quantum measurement techniques.

Findings

Polarization shaping enables detailed control of photoelectron interferograms.

The polarization sensitivity affects both instantaneous and cumulative wavefunctions.

Potential for high-information-content quantum metrology applications.

Abstract

Coherent control over photoelectron wavepackets, via the use of polarization-shaped laser pulses, can be understood as a time and polarization-multiplexed process. In this work, we investigate this multiplexing via computation of the observable photoelectron angular interferograms resulting from multi-photon atomic ionization with polarization-shaped laser pulses. We consider the polarization sensitivity of both the instantaneous and cumulative continuum wavefunction; the nature of the coherent control over the resultant photoelectron interferogram is thus explored in detail. Based on this understanding, the use of coherent control with polarization-shaped pulses as a methodology for a highly multiplexed coherent quantum metrology is also investigated, and defined in terms of the information content of the observable.