激光脉冲形状对弓形波电子俘获的影响

张国博; 邹德滨; 马燕云; 卓红斌; 邵福球; 杨晓虎; 葛哲屹; 银燕; 余同普; 田成林; 甘龙飞; 欧阳建明; 赵娜

doi:10.7498/aps.62.205203

摘要

使用二维粒子模拟程序研究了电子弓形波注入机制中激光脉冲形状对电子俘获效果的影响. 研究结果表明, 激光脉冲时间上升沿陡峭的正扭曲脉冲激发的尾波场强度高, 加速区域分布广, 并且有利于电子获得更高的初速度, 从而推动更多的电子进入尾波场加速相位. 在其他条件相同的情况下, 正扭曲脉冲的电子俘获数目远高于激光脉冲时间分别为高斯形和负扭曲分布的情形, 使得电子束的品质得到改善. 研究结果对于理解尾波场加速中电子注入过程以及获得大电荷量高能电子束具有积极意义.

关键词:

Abstract

Effects of pulse temporal profile on electron injection and trapping in the electron bow-wave injection regime are investigated by two-dimensional particle-in-cell simulations. It is found that a positive skew pulse can enhance the wake-field amplitude, extends the accelerating aera, and improves the initial velocity of electrons injected into the bubble. Thus more energetic electrons are driven into the bubble accelerating phase. The total injection number for a positive skew pulse is higher than those of negative skew and usual Gaussian pulses in the same conditions, and the quality of electron beam is also improved. The obtained result is very important and beneficial for the future experimental investigation of the laser wake-field acceleration to obtain an energetic electron beam with a large charge quantity.

Keywords:

作者及机构信息

1.
国防科学技术大学理学院, 长沙 410073

基金项目: 国家重点基础研究发展计划(批准号: 2013CBA01500)、国防科学与技术大学科研计划重大项目、国家自然科学基金委员会-中国工程物理研究院联合基金(批准号: 10976031)、国家自然科学基金(批准号: 11175253, 10975121, 10935002, 11375265)和国家自然科学基金青年科学基金(批准号: 11205243, 11205242, 11305264)资助的课题.

Authors and contacts

1.
College of Science, National University of Defense Technology, Changsha 410073, China

Funds: Project supported by the National Basic Research Program of China (Grant No. 2013CBA01500), the Research Program of National University of Defense Technology, China, the Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics (Grant No. 10976031), the National Natural Science Foundation of China (Grant Nos. 11175253, 10975121, 10935002, 11375265), and the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 11205243, 11205242, 11305264).

参考文献

[1]	Bahk S W, Rousseau P, Planchon T A, Chvykov V, Kalintchenko G, Maksimchuk A, Mourou G A, Yanovsky V 2004 Opt. Lett. 29 2837
[2]	Yanovsky V, Chvykov V, Kalinchenko G, Rousseau P, Planchon T, Matsuoka T, Maksimchuk A, Nees J, Cheriaux G, Mourou G, Krushelnick K 2008 Opt. Express 16 2109
[3]	Tajima T, Dawson J M 1979 Phys. Rev. Lett. 43 267
[4]	Malka V 2012 Phys. Plasmas 19 055501
[5]	Chen M, Sheng Z M, Zhang J 2006 Chin. Phys. 15 568
[6]	Suk H, Barov N, Rosenzweig J B, Esarey E 2001 Phys. Rev. Lett. 86 6
[7]	Chen M, Sheng Z M, Ma Y Y, Zhang J 2006 J. Appl. Phys. 99 056109
[8]	Wu H C, Xie B S, Yu M Y 2010 Chin. Phys. Lett. 27 105201
[9]	Wang G H, Wang X F, Dong K G 2012 Acta Phys. Sin. 61 165201 (in Chinese) [王广辉, 王晓方, 董克攻 2012 物理学报 61 165201]
[10]	Chen M, Esarey E, Schroeder C B, Geddes C G R, Leemans W P 2012 Phys. Plasmas 19 033101
[11]	Xu H, Chang W W, Yin Y, Zhuo H B 2004 Acta Phys. Sin. 53 818 (in Chinese)[徐涵, 常文蔚, 银燕, 卓红斌 2004 物理学报 53 818]
[12]	Xie B S, Aimidula A, Niu J S, Liu J, Yu M Y 2009 Laser Part. Beams 27 27
[13]	Zhang X M, Shen B F, Ji L L, Wang W P, Xu J C, Yu Y H, Yi L Q, Wang X F, Hafz N A M, Kulagin V 2012 Phys. Plasmas 19 053103
[14]	Upadhyay A K, Samant S A, Krishnagopal S 2013 Phys. Plasmas 20 013106
[15]	Fun Y, Zhang Q, Gong H 1994 Laser Induce Demage in Optical Materials 1 2114
[16]	Zou D B, Zhuo H B, Yu T P, Yang X H, Shao F Q, Ma Y Y, Ouyang J M, Ge Z Y, Zhang G B, Wang P 2013 Phys. Plasmas 20 073102
[17]	Ji L L, Shen B F, Zhang X M, Wang F C, Jin Z Y, Xia C Q, Wen M, Wang W P, Xu J C, Yu M Y 2009 Phys. Rev. Lett. 103 215005
[18]	Hur M S, Kim Y K, Kulagin V V, Nam I, Suk H 2012 Phys. Plasmas 19 073114
[19]	Ma Y Y, Kawata S, Yu T P, Gu Y Q, Sheng Z M, Yu M Y, Zhuo H B, Liu H J, Yin Y, Takahashi K, Xie X Y, Liu J X, Tian C L, Shao F Q 2012 Phys. Rev. E 85 046403
[20]	Ma Y Y, Chang W W, Yin Y, Yue Z W, Cao L H, Liu D Q 2000 Acta Phys. Sin. 49 1518 (in Chinese) [马燕云, 常文蔚, 银燕, 岳宗五, 曹莉华, 刘大庆 2000 物理学报 49 1518]
[21]	Ma Y Y, Chang W W, Yin Y, Cao L H, Yue Z W 2002 Chin. J. Comput. Phys. 19 311 (in Chinese) [马燕云, 常文蔚, 银燕, 曹莉华, 岳宗五 2002 计算物理 19 311]
[22]	Zhang G B, Ma Y Y, Zou D B, Zhuo H B, Shao F Q, Yang X H, Ge Z Y, Yu T P, Tian C L, Ouyang J M, Zhao Na 2013 Acta Phys. Sin. 62 125205 (in Chinese) [张国博, 马燕云, 邹德滨, 卓红斌, 邵福球, 杨晓虎, 葛哲屹, 余同普, 田成林, 欧阳建明, 赵娜 2013 物理学报 62 125205]

施引文献

[1]	Bahk S W, Rousseau P, Planchon T A, Chvykov V, Kalintchenko G, Maksimchuk A, Mourou G A, Yanovsky V 2004 Opt. Lett. 29 2837
[2]	Yanovsky V, Chvykov V, Kalinchenko G, Rousseau P, Planchon T, Matsuoka T, Maksimchuk A, Nees J, Cheriaux G, Mourou G, Krushelnick K 2008 Opt. Express 16 2109
[3]	Tajima T, Dawson J M 1979 Phys. Rev. Lett. 43 267
[4]	Malka V 2012 Phys. Plasmas 19 055501
[5]	Chen M, Sheng Z M, Zhang J 2006 Chin. Phys. 15 568
[6]	Suk H, Barov N, Rosenzweig J B, Esarey E 2001 Phys. Rev. Lett. 86 6
[7]	Chen M, Sheng Z M, Ma Y Y, Zhang J 2006 J. Appl. Phys. 99 056109
[8]	Wu H C, Xie B S, Yu M Y 2010 Chin. Phys. Lett. 27 105201
[9]	Wang G H, Wang X F, Dong K G 2012 Acta Phys. Sin. 61 165201 (in Chinese) [王广辉, 王晓方, 董克攻 2012 物理学报 61 165201]
[10]	Chen M, Esarey E, Schroeder C B, Geddes C G R, Leemans W P 2012 Phys. Plasmas 19 033101
[11]	Xu H, Chang W W, Yin Y, Zhuo H B 2004 Acta Phys. Sin. 53 818 (in Chinese)[徐涵, 常文蔚, 银燕, 卓红斌 2004 物理学报 53 818]
[12]	Xie B S, Aimidula A, Niu J S, Liu J, Yu M Y 2009 Laser Part. Beams 27 27
[13]	Zhang X M, Shen B F, Ji L L, Wang W P, Xu J C, Yu Y H, Yi L Q, Wang X F, Hafz N A M, Kulagin V 2012 Phys. Plasmas 19 053103
[14]	Upadhyay A K, Samant S A, Krishnagopal S 2013 Phys. Plasmas 20 013106
[15]	Fun Y, Zhang Q, Gong H 1994 Laser Induce Demage in Optical Materials 1 2114
[16]	Zou D B, Zhuo H B, Yu T P, Yang X H, Shao F Q, Ma Y Y, Ouyang J M, Ge Z Y, Zhang G B, Wang P 2013 Phys. Plasmas 20 073102
[17]	Ji L L, Shen B F, Zhang X M, Wang F C, Jin Z Y, Xia C Q, Wen M, Wang W P, Xu J C, Yu M Y 2009 Phys. Rev. Lett. 103 215005
[18]	Hur M S, Kim Y K, Kulagin V V, Nam I, Suk H 2012 Phys. Plasmas 19 073114
[19]	Ma Y Y, Kawata S, Yu T P, Gu Y Q, Sheng Z M, Yu M Y, Zhuo H B, Liu H J, Yin Y, Takahashi K, Xie X Y, Liu J X, Tian C L, Shao F Q 2012 Phys. Rev. E 85 046403
[20]	Ma Y Y, Chang W W, Yin Y, Yue Z W, Cao L H, Liu D Q 2000 Acta Phys. Sin. 49 1518 (in Chinese) [马燕云, 常文蔚, 银燕, 岳宗五, 曹莉华, 刘大庆 2000 物理学报 49 1518]
[21]	Ma Y Y, Chang W W, Yin Y, Cao L H, Yue Z W 2002 Chin. J. Comput. Phys. 19 311 (in Chinese) [马燕云, 常文蔚, 银燕, 曹莉华, 岳宗五 2002 计算物理 19 311]
[22]	Zhang G B, Ma Y Y, Zou D B, Zhuo H B, Shao F Q, Yang X H, Ge Z Y, Yu T P, Tian C L, Ouyang J M, Zhao Na 2013 Acta Phys. Sin. 62 125205 (in Chinese) [张国博, 马燕云, 邹德滨, 卓红斌, 邵福球, 杨晓虎, 葛哲屹, 余同普, 田成林, 欧阳建明, 赵娜 2013 物理学报 62 125205]

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