Two-dimensional model of thermal smoothing of laser imprint in at double-pulse plasma

被引：18

作者：

Iskakov, AB

Tishkin, VF

Lebo, IG

Limpouch, J

Masek, K

Rohlena, K

机构：

[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic

[2] Inst Math Modeling, Moscow 125047, Russia

[3] PN Lebedev Phys Inst, Moscow 117924, Russia

[4] Acad Sci Czech Republ, Inst Phys, CZ-18040 Prague 8, Czech Republic

来源：

PHYSICAL REVIEW E | 2000年 / 61卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.61.842

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 laser prepulse effect on the thermal smoothing of nonuniformities of target illumination is studied by means of a two-dimensional Lagrangian hydrodynamics simulation, based on the parameters of a real experiment. A substantial smoothing effect is demonstrated for the case of an optimum delay between the prepulse and the main heating laser pulse. The enhancement of the thermal smoothing effect by the laser prepulse is caused by the formation of a long hot layer between the region of laser absorption and the ablation surface. A comparison with experimental results is presented. PACS number(s): 52.58.Ns, 52.40.Nk, 52.65.-y.

引用

页码：842 / 847

页数：6

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