超短超强激光导引及对电子加速的影响

王广辉; 王晓方; 董克攻

doi:10.7498/aps.61.165201

摘要

使用粒子模拟程序对30 fs超短超强激光在均匀与抛物型两种密度分布等离子体中的传输, 以及在稳定传输状态下尾场的电子注入与加速形成的电子能谱进行了模拟与分析. 固定入射激光束斑尺寸, 在(0.42)1019/cm3等离子体密度范围, 对比分析了归一化峰值强度从16范围的激光脉冲在上述两种密度分布等离子体中传输时激光束斑尺寸的演化, 结果表明抛物型分布的等离子体密度通道能够对超短超强脉冲实现良好的导引, 有利于高能电子加速. 对于较高密度情况,即使在均匀等离子体中依靠相对论自聚焦等机制也可以实现良好的自导引传输,有利于实验简化以及产生更大电量的加速电子.

关键词:

Abstract

Simulations and analyses of ultra-short ultra-intense laser propagting in plasmas with uniform and parabolic density profiles, as well as the electron injection into the wake field and the electron spectra in the stable transmission state are performed by using a particle-in-cell code. Fixing the incident laser focal spot size but changing the plasma density in a range of (0.42)1019/cm3, comparative analyses are carried out of the evolutions of the laser beam spot during the propagation of the laser pulse in the plasmas with aforementioned two density profiles, with the normalized laser intensity ranging from 1 to 6. The results show that a plasma channel with a parabolic density profile can realize a good guiding of an ultra-short ultra-intense pulse, which is beneficial for high energy electron acceleration. However, at higher densities, self-guiding can be realized by relativistic self-focusing in uniform plasma, which is conducive to simplifying the experiment and to producing more accelerated electrons.

Keywords:

作者及机构信息

1.
中国科学技术大学近代物理系, 合肥 230026;

2.
中国工程物理研究院激光聚变研究中心, 绵阳 621900

基金项目: 国家自然科学基金-中国工程物理研究院联合基金(批准号：10876039) 和国家自然科学基金(批准号：11075160)资助的课题．

Authors and contacts

1.
Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;

2.
Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

Funds: Project supported by the Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics (Grant No. 10876039) and the National Natural Science Foundation of China (Grant No. 11075160).

参考文献

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[2]	Esarey E, Sprangle P, Krall J, Ting A 1997 IEEE J. Quant. Electron. 33 1879
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[6]	Pukhov A, Meyer-ter-Vehn J 2002 Appl. Phys. B 74 355
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[8]	Ehrlich Y, Cohen C, Zigler A, Krall J, Sprangle P, Esarey E 1996 Phys. Rev. Lett. 77 4186
[9]	Hosokai T, Kando M, Dewa H, Kotaki H, Kondo S, Hasegawa N, Nakajima K, Horioka K 2000 Opt. Lett. 25 10
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[17]	Glinec Y, Faure J, Dain L L, Darbon S, Hosokai T, Santos J J, Lefebvre E, Rousseau J P, Burgy F, Mercier B, Malka V 2005 Phys. Rev. Lett. 94 025003
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[19]	Dong K G, Gu Y Q, Zhu B, Wu Y C, Cao L F, He Y L, Liu H J, Hong W, Zhou W M, Zhao Z Q, Jiao C Y, Wen X L, Zhang B H, Wang X F 2010 Acta Phys. Sin. 59 8733 (in Chinese) [董克攻, 谷渝秋, 朱斌, 吴玉迟, 曹磊峰, 何颖玲, 刘红杰, 洪伟, 周维民, 赵宗清, 焦春晔, 温贤伦, 张保汉, 王晓方 2010 物理学报 59 8733]
[20]	Faure J, Glinec Y, Pukhov A, Kiselev S, Gordienko S, Lefebvre E, Rousseau J-P, Burgy F, Malka V 2004 Nature 431 541
[21]	Leemans W P, Nagler B, Gonsalves A J, Toth Cs, Nakamura K, Geddes C G R, Esarey E, Schroeder C B, Hooker S M 2006 Nat. Phys. 2 696
[22]	Ibbotson T P A, Bourgeois N, Rowlands-Rees T P, Caballero L S, Bajlekov S I, Walker P A, Kneip S, Mangles S P D, Nagel S R, Palmer C A J, Delerue N, Doucas G, Urner D, Chekhlov O, Clarke R J, Divall E, Ertel K, Foster P S, Hawkes S J, Hooker C J, Parry B, Rajeev P P, Streeter M J V, Hooker S M 2010 Phys. Rev. S.T. Accel. Beams. 13 031301

施引文献

[1]	Monot P, Auguste T, Gibbon P, Jakober F, Mainfray G 1995 Phys. Rev. Lett. 74 2953
[2]	Esarey E, Sprangle P, Krall J, Ting A 1997 IEEE J. Quant. Electron. 33 1879
[3]	Geddes C G R, Toth C, van Tilborg J, Esarey E, Schroeder C B, Bruhwiler D, Nieter C, Cary J, Leemans W P 2004 Nature 431 538
[4]	Tang H, Guo H, Liu M W, Chou Y L, Deng D M 2003 Acta Phys. Sin. 52 2170(in Chinese) [唐华, 郭弘,刘明伟, 仇云利, 邓冬梅 2003 物理学报 52 2170]
[5]	Esarey E, Sprangle P 1996 IEEE Trans.Plasma Sci. 24 252
[6]	Pukhov A, Meyer-ter-Vehn J 2002 Appl. Phys. B 74 355
[7]	Lu W, Tzoufras M, Joshi C, Tsung F S, Mori W B, Vieira J, Fonseca R A, Silva L O 2007 Phys. Rev. S.T. Accel. Beams. 10 061301
[8]	Ehrlich Y, Cohen C, Zigler A, Krall J, Sprangle P, Esarey E 1996 Phys. Rev. Lett. 77 4186
[9]	Hosokai T, Kando M, Dewa H, Kotaki H, Kondo S, Hasegawa N, Nakajima K, Horioka K 2000 Opt. Lett. 25 10
[10]	Spence D J, Hooker S M 2000 Phys. Rev. E 63 015401
[11]	Milchberg H M, Durfee C G, Mcllrath T J 1995 Phys. Rev. Lett. 75 2494
[12]	Gaul E W, Le Blanc S P, Rundquist A R, Zgadzaj R, Langhoff H, Downer M C 2000 Appl. Phys. Lett. 77 4112
[13]	Thomas A G R, Najmudin Z, Mangles S P D, Murphy C D, Dangor A E, Kamperidis C, Lancaster K L, Mori W B, Norreys P A, Rozmus W, Krushelnick K 2007 Phys. Rev. Lett. 98 095004
[14]	Lin H, Zha X J, Li R X, Chen L M, Xu Z Z 2006 Phys. Plasmas 13 103105
[15]	Esarey E, Schroeder C B, Leemans W P 2009 Rev. Mod. Phys. 81 1229
[16]	Schlenvoigt H P, Haupt K, Debus A, Budde F, Jackel O, Pfotenhauer S, Schwoerer H, Rohwer E, Gallacher J G, Brunetti E, Shanks R P, Wiggins S M, Jaroszynski D A 2008 Nat. Phys. 4 130
[17]	Glinec Y, Faure J, Dain L L, Darbon S, Hosokai T, Santos J J, Lefebvre E, Rousseau J P, Burgy F, Mercier B, Malka V 2005 Phys. Rev. Lett. 94 025003
[18]	Nieter C, Cary J R 2004 J. Comput. Phys. 196 448
[19]	Dong K G, Gu Y Q, Zhu B, Wu Y C, Cao L F, He Y L, Liu H J, Hong W, Zhou W M, Zhao Z Q, Jiao C Y, Wen X L, Zhang B H, Wang X F 2010 Acta Phys. Sin. 59 8733 (in Chinese) [董克攻, 谷渝秋, 朱斌, 吴玉迟, 曹磊峰, 何颖玲, 刘红杰, 洪伟, 周维民, 赵宗清, 焦春晔, 温贤伦, 张保汉, 王晓方 2010 物理学报 59 8733]
[20]	Faure J, Glinec Y, Pukhov A, Kiselev S, Gordienko S, Lefebvre E, Rousseau J-P, Burgy F, Malka V 2004 Nature 431 541
[21]	Leemans W P, Nagler B, Gonsalves A J, Toth Cs, Nakamura K, Geddes C G R, Esarey E, Schroeder C B, Hooker S M 2006 Nat. Phys. 2 696
[22]	Ibbotson T P A, Bourgeois N, Rowlands-Rees T P, Caballero L S, Bajlekov S I, Walker P A, Kneip S, Mangles S P D, Nagel S R, Palmer C A J, Delerue N, Doucas G, Urner D, Chekhlov O, Clarke R J, Divall E, Ertel K, Foster P S, Hawkes S J, Hooker C J, Parry B, Rajeev P P, Streeter M J V, Hooker S M 2010 Phys. Rev. S.T. Accel. Beams. 13 031301

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