Ptychographic reconstruction of attosecond pulses

TL;DR

This paper introduces a ptychography-based algorithm for attosecond pulse reconstruction that reduces data requirements and improves accuracy and speed of convergence.

Contribution

It presents a novel ptychography-inspired method for attosecond pulse reconstruction with uncorrelated energy and delay sampling, enhancing efficiency and precision.

Findings

Fewer electron spectra needed for reconstruction

Faster convergence of the algorithm

More precise pulse characterization

Abstract

We demonstrate a new attosecond pulse reconstruction modality which uses an algorithm that is derived from ptychography. In contrast to other methods, energy and delay sampling are not correlated, and as a result, the number of electron spectra to record is considerably smaller. Together with the robust algorithm, this leads to a more precise and fast convergence of the reconstruction.