Features of the Generation of a Collisionless Electrostatic Shock Wave in a Laser-Ablation Plasma

被引：8

作者：

Garasev, M. A. ^{[1
]}

Korytin, A. I. ^{[1
]}

Kocharovsky, V. V. ^{[1
]}

Mal'kov, Yu. A. ^{[1
]}

Murzanev, A. A. ^{[1
]}

Nechaev, A. A. ^{[1
]}

Stepanov, A. N. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

来源：

JETP LETTERS | 2017年 / 105卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

D O I：

10.1134/S0021364017030067

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The appearance of a density bump is experimentally revealed in an electrostatic shock wave during the ablation of an aluminum foil by a femtosecond laser pulse. The numerical simulation shows that this phenomenon can be explained by the generation of a packet of ion acoustic waves under the action of high-energy electron flows in a collisionless plasma. It is found that, for the formation and maintenance of the dense plasma layer in the shock wave, the contributions of accelerated ions overtaking it and wave-captured ions of the background plasma formed by a nanosecond laser prepulse in the process of ablation are significant.

引用

页码：164 / 168

页数：5

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