Experimental Evidence of the Collective Brillouin Scattering of Multiple Laser Beams Sharing Acoustic Waves.
Experimental Evidence of the Collective Brillouin Scattering of Multiple Laser Beams Sharing Acoustic Waves.
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DOI：
10.1103/physrevlett.116.235002
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发表时间：
2016-06
影响因子：
8.6
通讯作者：
C. Neuville;V. Tassin;D. Pesme;M. Monteil;P. Masson-Laborde;C. Baccou;P. Fremerye;F. Philippe;P. Seytor;D. Teychenné;W. Seka;J. Katz;R. Bahr;S. Depierreux
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文献类型：
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作者：
C. Neuville;V. Tassin;D. Pesme;M. Monteil;P. Masson-Laborde;C. Baccou;P. Fremerye;F. Philippe;P. Seytor;D. Teychenné;W. Seka;J. Katz;R. Bahr;S. Depierreux
惯性约束聚变的间接驱动方案使用大量以对称角分布排列的激光束。因此，集体激光等离子体不稳定性会产生，将位于锥体中的所有入射激光波耦合到沿锥体对称轴生长的子波[D. F. DuBois 等人，物理学。流体 B 4, 241 (1992)]。通过汤姆逊散射和散射光的互补诊断，我们证明了在间接驱动实验中驱动集体声波的集体受激布里渊侧向散射的发生。
The indirect-drive scheme to inertial confinement fusion uses a large number of laser beams arranged in a symmetric angular distribution. Collective laser plasma instabilities can therefore develop that couple all the incident laser waves located in a cone to the daughter wave growing along the cone symmetry axis [D. F. DuBois et al., Phys. Fluids B 4, 241 (1992)]. With complementary diagnostics of Thomson scattering and of the scattered light, we demonstrate the occurrence of collective stimulated Brillouin sidescattering driving collective acoustic waves in indirect-drive experiments.