Ponderomotive scaling in the radiative damping regime

被引：3

作者：

Pandit, Rishi R. ^{[1
]}

Ackad, Edward ^{[1
]}

d'Humieres, Emmanuel ^{[2
]}

Sentoku, Yasuhiko ^{[3
]}

机构：

[1] Southern Illinois Univ Edwardsville, Dept Phys, Edwardsville, IL 62026 USA

[2] Univ Bordeaux, Dept Phys, Bordeaux, France

[3] Osaka Univ, Inst Laser Engn, Osaka 5650871, Japan

来源：

PHYSICS OF PLASMAS | 2017年 / 24卷 / 10期

关键词：

FAST IGNITION; PROTON-BEAMS; LASER-PULSES; PLASMA; GENERATION; ELECTRON; ACCELERATION; ABSORPTION; OPTICS;

D O I：

10.1063/1.4995256

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：

The ponderomotive force for super intense laser matter interactions has been derived by taking into account the higher order terms of radiative damping. The ion acceleration via collisionless shock, generated by both the ponderomotive pressure of the intense laser pulse during the interaction and the electron acceleration, becomes less efficient due to the radiative damping. A new ponderomotive scaling has been derived by applying the force with the radiation reaction to the super intense laser regime, and it is benchmarked by a particle-in-cell simulation with the radiative damping terms included in equations of motion. We find good agreement between theoretical and simulation results in terms of shock velocity and accelerated ion energy. Published by AIP Publishing.

引用

页数：6

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