Accomplishment of Numerical Simulation for a SSD Beam Propagation in a Large Scale Plasma

LI Bin1 LIU Zhanjun1 HAO Liang1 HU Xiaoyan1 ZHENG Chunyang1 XIANG Jiang1

(1.Institute of Applied Physics and Computational Mathematics, Beijing, China 100094)

【Abstract】Beam smoothing by spectral dispersion (SSD) technology is widely adopted in larger laser fusion facilities. Using intensity distribution of SSD beam at its focal plane as boundary condition of laser plasma simulation code LAP3D, we simulate the propagation of SSD beam in large scale hohlraum underdense plasma. High efficiency parallel calculation of intensity distribution of a SSD beam at its focal plane is accomplished with improved algorithm, and then the simulation of entire beam propagation can be processed. The effect of modulation frequency of SSD beam on beam propagation is analyzed.

【Keywords】 physical optics; beam smoothing; spectral dispersion smoothing; numerical simulation; laser plasma;


【Funds】 National Natural Science Foundation of China (11575035)

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(Translated by CAI ZJ)


    [1] John D L, Peter A, Richard L B, et al. The physics basis for ignition using indirect-drive targets on the national ignition facility [J]. Physics of Plasmas, 2004, 11 (2): 339–491.

    [2] Zhang Rui, Li Ping, Su Jingqin, et al. Experimental research of target uniform illumination using smoothing by spectral dispersion and continuous phase plate [J]. Acta Physica Sinica, 2012, 61 (5): 054204 (in Chinese).

    [3] Skupsky S, Short R W, Kessler T, et al. Improved laser-beam uniformity using the angular dispersion of frequency-modulated light [J]. Journal of Applied Physics, 1989, 66 (8): 3456–3462.

    [4] Zhou Shenlei, Zhu Jian, Li Xuechun, et al. Experimental study of smoothing by spectral dispersion [J]. Chinese JLasers, 2006, 33 (3): 321–325 (in Chinese).

    [5] Jiang Xiujuan, Zhou Shenlei, Lin Zunqi, et al. Research on the diffraction characteristics of phase modulated laser beams dispersed spectrally [J]. Acta Physica Sinica, 2006, 55 (9): 4595–4601(in Chinese).

    [6] Liu Lanqin, Zhang Ying, Geng Yuanchao, et al. Propagation characteristics of small-bandwidth pulsed beams with smoothing by spectral dispersion in high power laser system [J]. Acta Physica Sinica, 2014, 63 (16): 164201(in Chinese).

    [7] Hinkel D E, Callahan D A, Langdon A B, et al. Analyses of laser–plasma interactions in National Ignition Facility (NIF) ignition targets [J]. Physics of Plasmas, 2008, 15 (5): 056314.

    [8] Glenzer S H, Arnold P, G Bardsley, et al. Progress in long scale length laser plasma interactions [J]. Nuclear Fusion, 2003, 44 (12): S185–S190.

    [9] Langer S H, Bhatele A, Still C H. pF3Dsimulations of laser-plasma interactions in national ignition facility experiments [J]. Computing in Science & Engineering, 2014, 16 (6): 42–50.

    [10] Li Bin, Liu Zhanjun, Zheng Chunyang, et al. Numerical studies of Gaussian laser beam deflection in hohlraum [J]. High Power Laser and Particle Beams, 2014, 26 (12): 122005 (in Chinese).

    [11] Hu X Y, Hao L, Liu Z J, et al. The development of laser–plasma interaction program LAP3D on thousands of processors [J]. Aip Advances, 2015, 5 (8): 87174.

    [12] Li Bin, Hu Xiaoyan, Zheng Chunyang, et al. Numerical simulation of filamentation for spatially smoothing beam in hohlraum [J]. High Power Laser and Particle Beams, 2016, 28 (11): 112004 (in Chinese).

    [13] Liu Z J, Li B, Hu X Y, et al. The light diffraction effect on stimulated Raman scattering [J]. Physics of Plasmas, 2016, 23 (2): 022705.

    [14] Cheng Wenyong, Zhang Xiaomin, Su Jingqin, et al. Suppression of small-scale self focusing of high power laser using moving beam [J]. Acta Physica Sinica, 2009, 58 (10): 7012–7016 (in Chinese).

This Article


CN: 31-1339/TN

Vol 44, No. 12, Pages 40-44

December 2017


Article Outline


  • 1 Introduction
  • 2 Intensity distribution form of the SSD beam
  • 3 Numerical model of the SSD beam
  • 4 Algorithm suitable for parallel calculation
  • 5 Influence of SSD beam modulation frequency on the beam propagation process
  • 6 Conclusions
  • References