Photoelectron emission via time and phase-tailored electromagnetic fields

TL;DR

This paper demonstrates how the energy and angular distributions of photoelectrons can be precisely controlled by tailoring the temporal and spatial phase structures of the driving electromagnetic fields, using quantum mechanical models.

Contribution

It introduces a method to tune photoelectron distributions through combined laser and THz/vortex pulses with phase modulation, expanding control over photoemission processes.

Findings

Photoelectron distributions are tunable via phase-structured fields.

Quantum calculations confirm control over energy and angular distributions.

Combination of laser and structured pulses enhances manipulation capabilities.

Abstract

The energy and the angular distributions of photoelectrons are shown to be tunable by choosing the time and the spatial phase structure of the driving fields. These conclusions are derived from quantum mechanical calculations done within a single-active electron model for an atomic target subjected to a combination of laser field and a time-asymmetric THz pulse and/or vortex-laser pulse with a spatially modulated phase of the wavefront.