A critical analysis of the theoretical scheme to evaluate photoelectron spectra

TL;DR

This paper critically examines a theoretical method for evaluating photoelectron spectra, highlighting its limitations at high laser intensities and proposing a generalized scheme that improves accuracy under such conditions.

Contribution

It introduces a generalized evaluation scheme that enhances the accuracy of photoelectron spectra calculations at high laser intensities.

Findings

The simple scheme is limited at high intensities due to ongoing laser pulses.

The generalized scheme significantly improves PES evaluation results.

Limitations of the traditional method are identified and addressed.

Abstract

We discuss in depth the validity and limitations of a theoretical scheme to evaluate photo-electron spectra (PES) through collecting the phase oscillations at a given measuring point. Problems appear if the laser pulse is still active when the first bunches of outgoing flow reach the measuring point. This limits the simple scheme for evaluation of PES to low and moderate laser intensities. Using a model of free particle plus dipole field, we develop a generalized scheme which is shown to considerably improve the results for high intensities.