TJ cm-3 high energy density plasma formation from intense laser-irradiated foam targets composed of disordered carbon nanowires

被引：8

作者：

Jiang, K. ^{[1
,2
]}

Pukhov, A. ^{[1
]}

Zhou, C. T. ^{[3
,4
]}

机构：

[1] Heinrich Heine Univ Dusseldorf, Inst Theoret Phys 1, D-40225 Dusseldorf, Germany

[2] China Acad Engn Phys, Grad Sch, Beijing 100088, Peoples R China

[3] Shenzhen Technol Univ, Ctr Adv Mat Diagnost Technol, Shenzhen 518118, Peoples R China

[4] Shenzhen Technol Univ, Coll Engn Phys, Shenzhen 518118, Peoples R China

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2021年 / 63卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

high energy physics; particle-in-cell simulations; laser plasma; INERTIAL-CONFINEMENT FUSION; GENERATION; PULSES;

D O I：

10.1088/1361-6587/abc89e

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

High energy density plasma formation from intense laser-irradiated foam targets composed of disordered carbon nanowires is investigated using three-dimensional particle-in-cell simulations. It is shown that due to the unprecedentedly high laser energy absorption rate of the foam target, approximately three times larger as compared with simple solid targets, the plasma energy density reaches an unexplored TJ cm(-3) regime at 10(23) W cm(-2) laser irradiation. In addition, nanowire thermal expansion caused by prepulse heating is considered. We find that after expansion, the target becomes relativistically transparent to the main pulse. The average value of particle energy density decreases slightly and its distribution tends to resemble that of solid targets. Furthermore, energy density scaling with laser intensities is given. It suggests that an even more extreme plasma state is reachable using ultraintense lasers, as the energy loss to photons caused by quantum electrodynamics effects is rather negligible.

引用

页数：9

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