The Pulse Intensity-Duration Conjecture: Evidence from Free-Electron Lasers

TL;DR

This paper investigates the Pulse Intensity-Duration Conjecture in free-electron lasers, providing evidence and extending the conjecture to relativistic electron bunches to enhance understanding of the physical principles involved.

Contribution

It extends the Pulse Intensity-Duration Conjecture to free-electron lasers, offering theoretical insights into the relationship between laser intensity and pulse duration.

Findings

Supports the conjecture with evidence from free-electron laser data

Extends the conjecture to relativistic electron bunches

Provides a physical explanation for the conjecture's validity

Abstract

The recent remark by G. Mourou and T. Tajima (Science 331, 41 (2011)) on the intensity of the driver laser pulse and the duration of the created pulse that higher driver beam intensities are needed to reach shorter pulses of radiation remains a conjecture without clear theoretical reasoning so far. Here we offer its extension to the case of relativistic electron bunches as the laser's radiating medium (free-electron laser). This also bolsters the understanding of the underlying physical principle of the Conjecture.