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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.
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Keywords:
- wake-field /
- electron trapping /
- temporal profile /
- particle-in-cell simulation
[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 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 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 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 62 125205]
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[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 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 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 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 62 125205]
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