Electron dressed mass in short laser pulses and its measurement

TL;DR

This paper discusses how to experimentally determine the electron's effective mass in intense laser fields by analyzing coherent Compton radiation, enabling measurements of ultra-strong laser pulse properties beyond previous methods.

Contribution

It introduces a novel approach to measure the electron dressed mass and intense laser pulse characteristics using coherent Compton radiation analysis.

Findings

Electron dressed mass can be determined experimentally.

Coherent Compton radiation reveals properties of intense laser pulses.

Method extends measurement capabilities to higher laser intensities.

Abstract

The concept of the electron mass dressing by a powerful laser pulse is discussed. It is shown, by considering the coherent frequency combs generated out of the Compton radiation, how the electron dressed mass can be determined experimentally. This also opens a possibility to measure properties of extremely intense pulses for which the previously developed methods, working at moderate intensities, are not applicable. Namely, one can determine these properties from the properties of coherent Compton radiation.