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Efficient ion acceleration and dense electron-positron plasma creation in ultra-high intensity laser-solid interactions

Authors :
Sorbo, D. Del
Blackman, D. R.
Capdessus, R.
Small, K.
Slade-Lowther, C.
Duff, M. J.
Robinson, A. P. L.
McKenna, P.
Sheng, Z. -M.
Pasley, J.
Ridgers, C. P.
Luo, Wen
Publication Year :
2017
Publisher :
arXiv, 2017.

Abstract

The radiation pressure of next generation ultra-high intensity ($>10^{23}$ W/cm$^{2}$) lasers could efficiently accelerate ions to GeV energies. However, nonlinear quantum-electrodynamic effects play an important role in the interaction of these laser pulses with matter. Here we show that these effects may lead to the production of an extremely dense ($\sim10^{24}$ cm$^{-3}$) pair-plasma which absorbs the laser pulse consequently reducing the accelerated ion energy and energy conversion efficiency by up to 30-50\% \& 50-65\%, respectively. Thus we identify the regimes of laser-matter interaction where either ions are efficiently accelerated or dense pair-plasmas are produced as a guide for future experiments.

Details

ISSN :
13672630
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....bb706202fdb5b94f82c59d3287293e5c
Full Text :
https://doi.org/10.48550/arxiv.1706.04153