High Power Gamma-Ray Flash Generation in Ultra Intense Laser-Plasma Interaction

TL;DR

This paper explores how ultra-intense laser interactions with plasma can produce high-power gamma-ray flashes, analyzing the effects of laser parameters and plasma density to optimize gamma-ray pulse characteristics.

Contribution

It introduces a theoretical and simulation-based framework for optimizing gamma-ray flash generation using high-intensity lasers and tailored plasma targets.

Findings

Optimal laser and plasma conditions for gamma-ray flash production identified

Gamma-ray pulse duration and divergence depend on laser amplitude and plasma density

Particle-in-cell simulations confirm theoretical predictions

Abstract

When high-intensity laser interaction with matter enters the regime of dominated radiation reaction, the radiation losses open the way for producing short pulse high power gamma ray flashes. The gamma-ray pulse duration and divergence are determined by the laser pulse amplitude and by the plasma target density scale length. On the basis of theoretical analysis and particle-in-cell simulations with the radiation friction force incorporated, optimal conditions for generating a gamma-ray flash with a tailored overcritical density target are found.