Time Evolution of Collisionless Shock in Counterstreaming Laser-Produced Plasmas

被引：125

作者：

Kuramitsu, Y. ^{[1
]}

Sakawa, Y. ^{[1
]}

Morita, T. ^{[2
]}

Gregory, C. D. ^{[3
]}

Waugh, J. N. ^{[4
]}

Dono, S. ^{[5
]}

Aoki, H. ^{[2
]}

Tanji, H. ^{[5
]}

Koenig, M. ^{[3
]}

Woolsey, N. ^{[4
]}

Takabe, H. ^{[1
]}

机构：

[1] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan

[3] Univ Paris 06, Ecole Polytech, Lab Utilisat Lasers Intenses, CEA,CNRS,UMR 7605, F-91128 Palaiseau, France

[4] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[5] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.106.175002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigated the time evolution of a strong collisionless shock in counterstreaming plasmas produced using a high-power laser pulse. The counterstreaming plasmas were generated by irradiating a CH double-plane target with the laser. In self-emission streaked optical pyrometry data, steepening of the self-emission profile as the two-plasma interaction evolved indicated shock formation. The shock thickness was less than the mean free path of the counterstreaming ions. Two-dimensional snapshots of the self-emission and shadowgrams also showed very thin shock structures. The Mach numbers estimated from the flow velocity and the brightness temperatures are very high.

引用

页数：4

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