有限长激光脉冲在部分离化等离子体中的传播

柳剑鹏; 刘明萍; 陶向阳; 刘三秋

doi:10.7510/jgjs.issn.1001-3806.2015.03.018

有限长激光脉冲在部分离化等离子体中的传播

1.
江西师范大学物理与通信电子学院, 南昌 330022;
2.
南昌大学信息工程学院, 南昌 330031;
3.
南昌大学物理系, 南昌 330047

作者简介: 柳剑鹏(1989-),男,硕士研究生,主要研究方向为激光等离子体的相互作用。.

通讯作者: 陶向阳, x.y.tao@163.com ;

基金项目:
国家自然科学基金资助项目(11147005;11178002);江西省自然科学基金资助项目(20122BAB202003)
中图分类号: O437;O53

Propagation of short laser pulses in partially stripped plasma

1.
College of Physics & Communication Electronics, Jiangxi Normal University, Nanchang 330022, China;
2.
College of Information Engineering, Nanchang University, Nanchang 330031, China;
3.
Department of Physics, Nanchang University, Nanchang 330047, China

Corresponding author: TAO Xiangyang, x.y.tao@163.com ;

CLC number: O437;O53

摘要: 为了研究有限长激光脉冲在部分离化等离子体中的传播特性,采用变分法推导出有限长激光脉冲在部分离化等离子体中的参量演化方程,分析了尾波场、相对论自聚焦和部分离化非线性极化强度的影响因素;通过分析焦斑半径和脉冲宽度满足的耦合方程,讨论了横向和纵向尾波场影响下的激光脉冲传播特性。结果表明,由于焦斑半径和脉冲宽度的耦合,激光脉冲在部分离化等离子体中传播必须满足一定条件;在部分离化等离子体中,考虑激光传播时脉冲宽度的变化是有必要的;对给定强度的激光脉冲,等离子体密度不变时,随着电离程度增大,尾波场会进一步增强激光脉冲的自聚焦,其中纵向尾波场比横向尾波场对激光脉冲的自聚焦作用更明显。这一结果对有限长激光脉冲电离诱导自注入及尾波场加速电子的方案具有理论指导意义。
- 激光光学 /
- 部分离化等离子体 /
- 尾波场 /
- 焦斑半径 /
- 脉冲宽度
Abstract: In order to study the propagation characteristics of short laser pulses in partially stripped plasma, parameters evolution equation of short laser pulses in partially ionized plasma was derived using variational method. The effect parameters of wakefield, relativistic self-focusing and intensity of partially stripped plasma were analyzed. The coupled evolution equations of the laser spot size and the pulse length were derived and the propagation of a short laser pulse in partially stripped plasma was analyzed under the effects of transverse wakefield(TWF) and longitudinal wakefield(LWF). The results show that laser pulse can be allowed to propagate in patitally stripped plasma only when a certain condition is satisfied. The evolution of the pulse length should be considered in partially stripped plasma. When laser pulse and plasma density is constant, with the increasing of ionization degree, wakefield will enhance the self-focusing of the laser pulse further. Longitudinal wakefield has more obvious effect on self-focusing of laser pulse than transverse wakefield. The results may be significant theoretically to the mechanism of ionization-induced injection and acceleration by an intense laser pulse.
- laser optics /
- partially stripped plasmas /
- wakefield /
- spot radius /
- pulse length

[1]	TAJIMA T, DAWSON J M. Laser electron accelerator[J].Physics Review Letters, 1979,43(4): 267-270.
[2]	NUCKOLLS J H, WOOD L, THIESSEN A R, et al. Laser compression of matter to super-high densities: thermonuclear (CTR) Applications[J].Nature, 1972,239(15):139-142.
[3]	TABAK M, HAMMER J, GLINSKY M E, et al. Ignition and high gain with ultrapowerful lasers[J].Physics Plasmas, 1994,1(5):1626-1634.
[4]	LINDL J D, Development of the indirect-drive approach to inertial confinement fusion and the target physics basis for ignition and gain[J]. Physics Plasmas, 1995,2(2):3933-4025.
[5]	ESAREY E, SPRANGLE P, KRALL J, et al. Overview of plasma-based accelerator concepts[J].IEEE Transactiong Plasma Science,1996,24(2):252-288.
[6]	HAO D Sh. A new accelerated mechanism of protons in high power laser-plasma [J]. Laser Technology, 2012, 36(4):653-656(in Chinese).
[7]	SPRANGLE P, HAFIZI B, PENANO J R, et al. Wakefield generation and GeV acceleration in tapered plasma channels[J].Physics Review, 2001,E63(5):056405.
[8]	MILCHBERG H M, DURFEE Ⅲ C G, MCILRATH T J. High-order frequency conversion in the plasma waveguide[J].Physics Review Letters,1995,75(13):2494-2497.
[9]	MAcKLIN J, KMETEC J, GORDON C. High-order harmonic generation using intense femtosecond pulses[J].Physics Review Letters,1993,70(6):766-769.
[10]	ZHOU J, PEATROSS J, MURNANE M M, et al. Enhanced high-harmonic generation using 25fs laser pulses[J].Physics Review Letters,1996,76(5):752-755.
[11]	SPRANGLE P, ESAREY E. Interaction of ultrahigh laser fields with beams and plasmas[J].Physics Fluids, 1992,B4(7):2241-2248.
[12]	HONG X R, XIE B S, ZHANG S, et al. Wakefield effects and solitary waves of an intense short laser pulse propagation in a plasma channel[J].Physics Plasmas,2011,18(10):103106.
[13]	HU Q L, XIAO G L, RUAN W, et al. One-dimensional EM solitons in ultrashort intense laser pulse-partially stripped plasmas[J].Physics Letters,2010,A374(7):965-968.
[14]	SPRANGLE P, ESAREY E, HAFIZI B. Propagation and stability of intense laser pulses in partially stripped plasmas[J].Physics Review,1997,E56(5):5894-5907.
[15]	SPRANGLE P, ESAREY E, HAFIZI B. Intense laser pulse propagation and stability in partially stripped plasmas[J].Physics Review Letters,1997,79(6):1046-1049.
[16]	MANGLES S P D, MURPHY C D, NAJMUDIN Z, et al. Monoenergetic beams of relativistic electrons from intense laser-plasma interactions[J].Nature, 2004,431(7008):535-538.
[17]	GEDDES C G R, TOTH C S, van TILBORG J, et al. Observations of longitudinal and transverse self-injections in laser-plasma wakefield accelerators[J].Nature, 2004,431(7008):538-541.
[18]	FAURE J, GLIEC Y, PUKHOV A, et al. A laser-plasma accelerator producing monoenergetic electron beams[J].Nature,2004,431(7008):541-544.
[19]	LU W, HUANG C, ZHOU M, et al. Nonlinear theory for relativistic plasma wakefields in the blowout regime[J].Physics Review Letters, 2006,96(16):165002-165005.
[20]	LEEMANS W P, NAGLER B, GONSALVES A J, et al. GeV electron beams from a centimetre-scale accelerator[J].Nature Physics, 2006,2(10):696-699.
[21]	LIU M P, ZHENG Z, LIU S Q. Effects of Relativistic and ponderomotive nonlinearities on an intense laser pulse propagation in a plasma channel[J]. Communications in Theoretical Physics,2012,58(10):569-572.
[22]	PALLAVI J, VIJAY S, AJAY K, et al. Self-focusing and compression of laser pulses in partially stripped plasma[J].Physics Plasmas, 2011,18(7):073105.

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有限长激光脉冲在部分离化等离子体中的传播

作者简介: 柳剑鹏(1989-),男,硕士研究生,主要研究方向为激光等离子体的相互作用。.

通讯作者: 陶向阳, x.y.tao@163.com ;

Propagation of short laser pulses in partially stripped plasma

Corresponding author: TAO Xiangyang, x.y.tao@163.com ;

计量

有限长激光脉冲在部分离化等离子体中的传播

通讯作者: 陶向阳, x.y.tao@163.com;

作者简介: 柳剑鹏(1989-),男,硕士研究生,主要研究方向为激光等离子体的相互作用。

English Abstract

Propagation of short laser pulses in partially stripped plasma

Corresponding author: TAO Xiangyang, x.y.tao@163.com

全文HTML

目录

留言板

有限长激光脉冲在部分离化等离子体中的传播

作者简介: 柳剑鹏(1989-),男,硕士研究生,主要研究方向为激光等离子体的相互作用。.

通讯作者: 陶向阳, x.y.tao@163.com ;

Propagation of short laser pulses in partially stripped plasma

Corresponding author: TAO Xiangyang, x.y.tao@163.com ;

计量

出版历程

有限长激光脉冲在部分离化等离子体中的传播

通讯作者: 陶向阳, x.y.tao@163.com;

作者简介: 柳剑鹏(1989-),男,硕士研究生,主要研究方向为激光等离子体的相互作用。

English Abstract

Propagation of short laser pulses in partially stripped plasma

Corresponding author: TAO Xiangyang, x.y.tao@163.com

全文HTML

目录