Proton acceleration by single-cycle laser pulses offers a novel monoenergetic and stable operating regime

Proton acceleration by single-cycle laser pulses offers a novel monoenergetic and stable operating regime
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单周期激光脉冲的质子加速提供了一种新颖的单能且稳定的工作机制

DOI:
10.1063/1.4947544
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发表时间:
2016-04
期刊:
影响因子:
2.2
通讯作者:
Tajima T.
Tajima T.
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhou M. L.;Yan X. Q.;Mourou G.;Wheeler J. A.;Bin J. H.;Schreiber J.;Tajima T.

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由于有可能产生几十拍瓦功率的高能量单周期激光脉冲,我们研究了几个光学周期和超相对论强度范围内的激光与物质相互作用。一个特别有趣的无不稳定性的离子产生机制被揭示出来,导致了峰值能量大于GeV的短(飞秒; 10− 15 s)单能离子束的有效相干产生。最重要的是,相互作用是没有瑞利泰勒不稳定性和钻孔困扰技术,如目标法向鞘加速和辐射压力加速。
Prompted by the possibility to produce high energy, single-cycle laser pulses with tens of Petawatt (PW) power, we have investigated laser-matter interactions in the few optical cycle and ultra relativistic intensity regimes. A particularly interesting instability-free regime for ion production was revealed leading to the efficient coherent generation of short (femtosecond; 10−15s) monoenergetic ion bunches with a peak energy greater than GeV. Of paramount importance, the interaction is absent of the Rayleigh Taylor Instabilities and hole boring that plague techniques such as target normal sheath acceleration and radiation pressure acceleration.
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