Abstract

New laser facilities able to deliver either ultra high energy short pulses or ultra high intensity pulses are being constructed and will open new and exciting opportunities for laser ion acceleration. The interaction of a high intensity short pulse with underdense, near-critical and overdense targets has been studied using 2D Particle-In-Cell simulations in these regimes. In the ultra high energy regime, proton beams with maximum energies of hundreds of MeV and a high number of high energy protons could be accelerated using thin solid foils or low density targets. In the ultra high intensity regime, radiation losses will start affecting laser ion acceleration using thin overdense targets for intensities higher than 10 22 W/cm 2 , and produce very energetic ions.

Highlights

  • In the last few years, intense research has been conducted on laser-accelerated ion sources and their applications [1]

  • PETAL is a ultra high energy (UHE) multi-kJ Petawatt-class laser being built in France near Bordeaux [2]

  • Another new generation of laser systems such as the Apollon laser being built in France will be able to deliver ultra high intensities (UHI) of the order of 1023 W/cm2

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Summary

INTRODUCTION

In the last few years, intense research has been conducted on laser-accelerated ion sources and their applications [1]. PETAL is a ultra high energy (UHE) multi-kJ Petawatt-class laser being built in France near Bordeaux [2] Another new generation of laser systems such as the Apollon laser being built in France will be able to deliver ultra high intensities (UHI) of the order of 1023 W/cm. Another new generation of laser systems such as the Apollon laser being built in France will be able to deliver ultra high intensities (UHI) of the order of 1023 W/cm2 These facilities open new and exciting opportunities for laser ion acceleration. The interaction of a high intensity short pulse with underdense, near-critical and overdense targets has been studied using 2D Particle-In-Cell simulations in these regimes.

UHE REGIME
UHI WITH AND WITHOUT SELF-FORCE
CONCLUSIONS AND PERSPECTIVES
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