A "lighthouse" laser-driven staged proton accelerator allowing for ultrafast angular and spectral control - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2024

A "lighthouse" laser-driven staged proton accelerator allowing for ultrafast angular and spectral control

Patrizio Antici
  • Fonction : Auteur
Sophia Nan Chen
  • Fonction : Auteur

Résumé

Compact laser-plasma acceleration of fast ions has made great strides since its discovery over two decades ago, resulting in the current generation of high-energy ($\geq 100\,\rm MeV$) ultracold beams over ultrashort ($\leq 1\,\rm ps$) durations. To unlock broader applications of these beams, we need the ability to tailor the ion energy spectrum. Here, we present a scheme that achieves precisely this by accelerating protons in a "lighthouse" fashion, whereby the highest-energy component of the beam is emitted in a narrow cone, well separated from the lower-energy components. This is made possible by a two-stage interaction in which the rear surface of the target is first set into rapid motion before the main acceleration phase. This approach offers the additional advantages of leveraging a robust sheath acceleration process in standard micron-thick targets and being optically controllable.

Dates et versions

hal-04600027 , version 1 (04-06-2024)

Identifiants

Citer

Vojtěch Horný, Konstantin Burdonov, Alice Fazzini, Vincent Lelasseux, Patrizio Antici, et al.. A "lighthouse" laser-driven staged proton accelerator allowing for ultrafast angular and spectral control. 2024. ⟨hal-04600027⟩
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