Thomson scattering in high-intensity chirped laser pulses

TL;DR

This paper investigates how negative chirping in ultra-intense laser pulses enhances Thomson scattering, leading to higher energy and intensity of emitted radiation compared to unchirped pulses.

Contribution

It demonstrates that negative chirp in high-intensity laser pulses significantly boosts the energy and intensity of Thomson scattered radiation.

Findings

Negative chirp causes electrons to encounter higher frequency regions early.

Enhanced radiation energy and intensity with negative chirp.

Chirping strategy improves Thomson scattering efficiency.

Abstract

We consider the Thomson scattering of an electron in an ultra-intense chirped laser pulse. It is found that the introduction of a negative chirp means the electron enters a high frequency region of the field while it still has a large proportion of its original energy. This results in a significant enhancement of the energy and intensity of the emitted radiation as compared to the case without chirping.