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

被引：33

作者：

Del Sorbo, D. ^{[1
]}

Blackman, D. R. ^{[1
]}

Capdessus, R. ^{[2
]}

Small, K. ^{[1
]}

Slade-Lowther, C. ^{[1
]}

Luo, W. ^{[2
,3
]}

Duff, M. J. ^{[2
]}

Robinson, A. P. L. ^{[4
]}

McKenna, P. ^{[2
]}

Sheng, Z-M ^{[2
,5
]}

Pasley, J. ^{[1
]}

Ridgers, C. P. ^{[1
]}

机构：

[1] Univ York, York Plasma Inst, Dept Phys, York YO10 5DD, N Yorkshire, England

[2] Univ Strathclyde, Dept Phys SUPA, Glasgow G4 0NG, Lanark, Scotland

[3] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China

[4] STFC Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England

[5] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

来源：

NEW JOURNAL OF PHYSICS | 2018年 / 20卷

基金：

英国工程与自然科学研究理事会;

关键词：

radiation pressure ion acceleration; hole boring; light sail; quantum-electrodynamic plasmas; intense fields; laser-solid; BEAMS; TRANSPORT; ENERGY;

D O I：

10.1088/1367-2630/aaae61

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 (similar to 10(24) cm(-3)) pair-plasma which absorbs the laser pulse consequently reducing the accelerated ion energy and laser to ion conversion efficiency by up to 30%-50% and 50%-65%, respectively. Thus we identify the regimes of laser-matter interaction, where either ions are efficiently accelerated to high energy or dense pair-plasmas are produced as a guide for future experiments.

引用

页数：9

共 55 条

[1] Laser heating of solid matter by light-pressure-driven shocks at ultrarelativistic intensities [J].