Mitigating the hosing instability in relativistic laser-plasma interactions

被引：17

作者：

Ceurvorst, L. ^{[1
]}

Ratan, N. ^{[1
]}

Levy, M. C. ^{[1
]}

Kasim, M. F. ^{[1
]}

Sadler, J. ^{[1
]}

Scott, R. H. H. ^{[2
]}

Trines, R. M. G. M. ^{[2
]}

Huang, T. W. ^{[2
]}

Skramic, M. ^{[3
]}

Vranic, M. ^{[4
]}

Silva, L. O. ^{[4
]}

Norreys, P. A. ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[2] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[3] Univ Cambridge Trinity Coll, Cambridge CB2 1TQ, England

[4] Inst Super Tecn, GoLP, Inst Plasmas & Fusao Nucl, P-10490001 Lisbon, Portugal

来源：

NEW JOURNAL OF PHYSICS | 2016年 / 18卷

基金：

英国工程与自然科学研究理事会;

关键词：

hosing instability; hole-boring; laser-plasma interactions; plasma channeling; high energy density physics; inertial confinement fusion; CHANNEL FORMATION; FAST IGNITION; PULSE; ACCELERATION; PROPAGATION; ABSORPTION; SCATTERING; GAIN;

D O I：

10.1088/1367-2630/18/5/053023

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new physical model of the hosing instability that includes relativistic laser pulses and moderate densities is presented and derives the density dependence of the hosing equation. This is tested against two-dimensional particle-in-cell simulations. These simulations further examine the feasibility of using multiple pulses to mitigate the hosing instability in a Nd:glass-type parameter space. An examination of the effects of planar versus cylindrical exponential density gradients on the hosing instability is also presented. The results show that strongly relativistic pulses and more planar geometries are capable of mitigating the hosing instability which is in line with the predictions of the physical model.

引用

页数：16

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