Influence of the number of cones on speckle patterns in the Laser MegaJoule configuration

被引：0
|
作者：
Le Cain, A. [1 ]
Riazuelo, G. [2 ]
Sajer, J. M. [1 ]
机构：
[1] CEA, CESTA, DAM, BP 2, F-33114 Le Barp, France
[2] CEA, DIF, DAM, F-91297 Le Barp, France
来源：
IFSA 2011 - SEVENTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS | 2013年 / 59卷
关键词：
HOT-SPOTS; FUSION; PLASMA;
D O I：
10.1051/epjconf/20135905002
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
This paper investigates statistical properties of hot spots when speckle patterns are generated by the superimposition of multiple laser beams in a 2 cone and a 3 cone Laser MegaJoule configuration in the zone where all the beams overlap. Three different cases of polarizations are investigated: P polarization, S polarization and the case of Double Polarization Smoothing (DPS). It is found that the sizes of the speckles depend on the choice of the polarization and that DPS seems to be the best option in both configurations. It is shown that the longitudinal radius of the hot spots in a 2 cone configuration is bigger than in a 3 cone configuration.
引用
收藏
页数：5
相关论文
共 50 条
  • [41] Effect of primary aberrations on transverse displacement of laser speckle patterns
    MartiLopez, L
    OPTICS AND LASER TECHNOLOGY, 1996, 28 (01): : 15 - 19
  • [42] VELOCIMETRY OF MOVING PHASE PLATES USING LASER SPECKLE PATTERNS
    SCHMIDTHARMS, CA
    APPLIED OPTICS, 1984, 23 (14): : 2353 - 2358
  • [43] IMAGE SYNTHESIS FROM NONIMAGED LASER-SPECKLE PATTERNS
    IDELL, PS
    FIENUP, JR
    GOODMAN, RS
    OPTICS LETTERS, 1987, 12 (11) : 858 - 860
  • [44] Choosing a polarisation configuration for dynamic light scattering and laser speckle contrast imaging
    Akther, Sonam
    Mikkelsen, Markus B.
    Postnov, Dmitry
    BIOMEDICAL OPTICS EXPRESS, 2024, 15 (01) : 336 - 345
  • [45] Influence of laser speckle average size on ghost imaging
    Kong, Qing-Nan
    Wang, Shan-De
    Zhang, Chi
    Qin, Wei-Ping
    Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2015, 23 : 197 - 203
  • [46] Quantification of the effects of time-varying speckle patterns on speckle images using a modified speckle influence degree method
    Yuan, Yuan
    Bi, Yong
    Sun, Min Yuan
    Wang, Dong Dong
    Gao, Wei Nan
    Zhang, Shuo
    Zhu, Jian Ying
    OPTICS COMMUNICATIONS, 2020, 463
  • [47] Statistical properties of speckle patterns for a random number of scatterers and nonuniform phase distributions
    Metz, Fernando L.
    Bonatto, Cristian
    Prado, Sandra D.
    PHYSICAL REVIEW A, 2024, 109 (01)
  • [48] Characterization of speckle patterns generated by a semiconductor laser with optical feedback for speckle reduction in retinal imaging instruments
    Halpaap, Donatus
    Tiana-Alsina, Jordi
    Vilaseca, Meritxell
    Masoller, Cristina
    OPTICAL COHERENCE IMAGING TECHNIQUES AND IMAGING IN SCATTERING MEDIA III, 2019, 11078
  • [49] Influence of the Asynchronous Multibeam Irradiation of a Spherical Fusion Target by Megajoule Laser Beams on the Efficiency of Thermonuclear Burning
    Bel'kov, S. A.
    Bondarenko, S. V.
    Vergunova, G. A.
    Garanin, S. G.
    Gus'kov, S. Yu.
    Demchenko, N. N.
    Doskoch, I. Ya.
    Kuchugov, P. A.
    Zmitrenko, N. V.
    Rozanov, V. B.
    Stepanov, R. V.
    Yakhin, R. A.
    JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2018, 127 (03) : 539 - 548
  • [50] Influence of the Asynchronous Multibeam Irradiation of a Spherical Fusion Target by Megajoule Laser Beams on the Efficiency of Thermonuclear Burning
    S. A. Bel’kov
    S. V. Bondarenko
    G. A. Vergunova
    S. G. Garanin
    S. Yu. Gus’kov
    N. N. Demchenko
    I. Ya. Doskoch
    P. A. Kuchugov
    N. V. Zmitrenko
    V. B. Rozanov
    R. V. Stepanov
    R. A. Yakhin
    Journal of Experimental and Theoretical Physics, 2018, 127 : 539 - 548
12345