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基于半解析自洽理论研究相对论激光脉冲驱动下阿秒X射线源的产生

王少义 谭放 吴玉迟 范全平 矫金龙 董克攻 钱凤 曹磊峰 谷渝秋

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基于半解析自洽理论研究相对论激光脉冲驱动下阿秒X射线源的产生

王少义, 谭放, 吴玉迟, 范全平, 矫金龙, 董克攻, 钱凤, 曹磊峰, 谷渝秋

Attosecond X-ray generation driven by the relativistic laser pulse based on the semi-analytical self-consistent theory

Wang Shao-Yi, Tan Fang, Wu Yu-Chi, Fan Quan-Ping, Jiao Jin-Long, Dong Ke-Gong, Qian Feng, Cao Lei-Feng, Gu Yu-Qiu
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  • 发展了一种描述相对论激光脉冲与稠密等离子体相互作用产生阿秒X射线源的半解析自洽理论.该理论模型不仅可以获得等离子体界面的振荡轨迹、振荡面电场和磁场等物理参数,而且能够精确计算出激光脉冲驱动下阿秒X射线源的频谱,结果与粒子模拟程序一致.理论计算结果表明阿秒X射线源的辐射特性与等离子体界面随时演化过程相关,在周期量级激光场驱动下等离子体界面振荡振幅呈现中心不对称,通过改变激光场的载波包络相位实现对等离子体界面振荡的控制,获得准单阿秒X射线源.
    A semi-analytical theory of the interaction between a relativistic laser pulse and the overdense plasma to generate an attosecond X-ray source is presented.The physical parameters such as plasma oscillation trajectory,surface electric field and magnetic field can be given by this model,and the high-order harmonic spectrum is also calculated accurately from the solution of the plasma surface oscillations,the obtained result is consistent with the result from the PIC simulation program.This model can be valid for arbitrary laser duration,solid densities,and a large set of laser peak intensities (1018-1021 W/cm2).In addition,the model is not applicable for the small laser focal spots (less than ten times the laser wavelength),although two-dimensional effects such as the pulse finite size may significantly change the movement progress of the electrons,the laser spot can be larger than ten times the laser wavelength under the general laboratory conditions. In this model,the laser energy absorption is small,and the electron kinetic pressure is also small.Due to the radiation pressure of the laser pulse,the electrons are pushed into the solid,forming a very steep density profile.As a result,the relevant forces makes the electrons ponderomotive and the longitudinal electric field is caused by the strong electric charge separation effect.This semi-analytical self-consistent theory can give us a reasonable physical description, and the momentum equation and the continuity equation of the electric and magnetic field at the boundary allow us to determine the plasma surface oscillations.The spatiotemporal characteristics of the reflected magnetic and electric field at the boundary can allow us to determine the emitting characteristics of the high order harmonic. Our results show that the radiation of the attosecond X-ray source is dependent on the plasma surface oscillation. The plasma surface oscillates with a duration about twice the laser optical cycle,and the high-order harmonics also emit twice the laser optical cycle,thus an attosecond pulse train driven by the multi-cycle laser pulse can be formed.By using a few-cycle laser field,the smooth high-order harmonics can be obtained,which leads to a single attosecond pulse with high signal-to-noise ratio.In a word,our calculation results show that the time evolution progress of plasma surface can be controlled by changing the carrier envelope phase of the few-cycle laser pulse,and then the radiation progress of the high-order harmonics can be influenced as result of a single attosecond X-ray pulse.
      通信作者: 吴玉迟, wuyc@caep.cn
    • 基金项目: 国家重大科学仪器专项(批准号:2012YQ130125)、国家自然科学基金(批准号:11405159,11375161,11174259)、国家自然科学基金联合基金(批准号:U1630246)、中国工程物理研究院院长基金(批准号:2014-1-017)、中国工程物理研究院科技发展基金(批准号:2015B0401090)、重点实验室基金(批准号:9140C680302130C68242)和国家科技部重点研发计划(批准号:2016YFA0401100)资助的课题.
      Corresponding author: Wu Yu-Chi, wuyc@caep.cn
    • Funds: Project supported by the National Science Instruments Major Project of China (Grant No. 2012YQ130125), the National Natural Science Foundation of China (Grant Nos. 11405159, 11375161, 11174259), the Joint Funds of the National Natural Science Foundation of China (Grant No. U1630246), the President Foundation of China Academy of Engineering Physics (Grant No. 2014-1-017), the Technology Development Foundation of China Academy of Engineering Physics (Grant No. 2015B0401090), the Key Laboratory Foundation of the Sciences and Technology on Plasma Physics Laboratory, China (Grant No. 9140C680302130C68242), and the National Key Research and Development Technology Project of China (Grant No. 2016YFA0401100).
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  • [1]

    Bartels R A, Paul A, Green H, Kapteyn H C, Murnane M M, Backus S, Christov I P, Liu Y, Attwood D, Jacobsen C 2002 Science 297 376

    [2]

    Rundquist A, Durfee Ⅲ C G, Chang Z, Herne C, Backus S, Murnane M M, Kapteyn H C 1998 Science 280 1412

    [3]

    Kling M F, Siedschlag C, Verhoef A J, Khan J I, Schultze M, Uphues Th, Ni Y, Uiberacker M, Drescher M, Krausz F, Vrakking M J J 2006 Science 312 246

    [4]

    Zhou Y M, Huang C, Liao Q, Lu P X 2012 Phys. Rev. Lett. 107 053004

    [5]

    Qiao B, Zepf M, Borghesi M, Geissler M 2009 Phys. Rev. Lett. 102 145002

    [6]

    Faure J, Glinec Y, Pukhov A, et al. 2004 Nature 431 541

    [7]

    Chen L M, Liu F, Wang M, et al. 2010 Phys. Rev. Lett. 104 215004

    [8]

    Hentschel M, Kienberger R, Spielmann C, Reider G A, Milosevic N, Brabec T, Corkum P, Heinzmann U, Drescher M, Krausz F 2001 Nature 414 509

    [9]

    Pfeifer T, Gallmann L, Abel M J, Nagel P M, Neumark D M, Leone S R 2006 Phys. Rev. Lett. 97 163901

    [10]

    Lan P, Lu P, Cao W, Wang X 2007 Phys. Rev. A 76 043808

    [11]

    Christov I P, Murnane M M, Kapteyn H C 1997 Phys. Rev. Lett. 78 1251

    [12]

    Wang S, Hong W, Lan P, Zhang Q, Lu P 2009 J. Phys. B 42 105601

    [13]

    Zhang Q, Lu P, Lan P, Hong W, Yang Z 2008 Opt. Express 16 9795

    [14]

    Zeng Z, Zheng Y, Cheng Y, Li R, Xu Z 2012 J. Phys. B 45 074004

    [15]

    Zhang Q, He L, Lan P, Lu P 2014 Opt. Express 22 13213

    [16]

    Wei P, Miao J, Zeng Z, Li C, Ge X, Li R, Xu Z 2013 Phys. Rev. Lett. 110 233903

    [17]

    Zhong H Y, Guo J, Zhang H D, Du H, Liu H X 2015 Chin. Phys. B 24 073202

    [18]

    Lewenstein M, Balcou P, Ivanov M Yu, L' Huillier A, Corkum P B 1994 Phys. Rev. A 49 2117

    [19]

    Corkum P B 1993 Phys. Rev. Lett. 71 1994

    [20]

    Zhao K, Zhang Q, Chini M, et al. 2012 Opt. Lett. 37 3891

    [21]

    Dromey B, Zepf M, Gopal A, Lancaster K, Wel M S, Krushelnick K, Tatarakis M, Vakakis, Moustaizis S, Kodama R, Tampo M, Stoeckl C, Clarke R, Habara H, Neely D, Karsch S, Norreys P 2006 Nat. Phys. 2 456

    [22]

    Ndabashimiye G, Ghimire S, Wu M, Browne D A, Schafer K J, Gaarde M B, Reis D A 2016 Nature 534 520

    [23]

    Pan K Q, Zheng C Y, He X T 2016 Phys. Plasma 23 023109

    [24]

    Bai Y L, Zhang Q J, Tian M, Cui C H 2013 Acta Phys. Sin. 62 125206 (in Chinese)[白易灵, 张秋菊, 田密, 崔春红2013物理学报62 125206]

    [25]

    Zhang X M, Shen B F, Shi Y, Wang X F, Zhang L, Wang W P, Xu J C, Yi L Q, Xu Z Z 2015 Phys. Rev. Lett. 14 173901

    [26]

    Qur F, Thaury C, Monot P, Dobosz S, Martin P, Geindre J P, Audebert P 2006 Phys. Rev. Lett. 96 125004

    [27]

    Zhang Q J, Sheng Z M, Zhang J 2003 Acta Phys. Sin. 53 2180 (in Chinese)[张秋菊, 盛政明, 张杰2003物理学报53 2180]

    [28]

    Li K, Zhang J, Yu W 2003 Acta Phys. Sin. 52 1412 (in Chinese)[李昆, 张杰, 余玮2003物理学报52 1412]

    [29]

    Bulanov S V, Naumova N M, Pegoraro F 1994 Phys. Plasmas 1 745

    [30]

    Baeva T, Gordienko S, Robinson A P L, Norreys P A 2011 Phys. Plasma 18 056702

    [31]

    Liu J S, Xia C, Liu L, Li R X, Xu Z Z 2009 Laser Particale Beams 27 365

    [32]

    Sanz J, Debale A, Mima K 2012 Phys. Rev. E 85 046411

    [33]

    Debale A, Sanz J, Gremillet L, Mima K 2013 Phys. Plasmas 20 053107

    [34]

    Debayle A, Sanz J, Gremiller L 2015 Phys. Rev. E 92 053108

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出版历程
  • 收稿日期:  2017-04-18
  • 修回日期:  2017-06-01
  • 刊出日期:  2017-10-05

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