论文标题
通过角度不一致的光抑制刺激的拉曼散射，朝着各个方面，时间，空间和角度的激光系统降低激光系统
Suppression of stimulated Raman scattering by angularly incoherent light, towards a laser system of incoherence in all dimensions of time, space, and angle
论文作者
论文摘要
激光 - 血压不稳定性（LPI）是激光驱动的惯性限制融合（ICF）的主要障碍之一，可在高增益下实现可预测和可再现的融合。我们首次通过分析证明并通过三维粒子中的模拟证实了角度不一致的不稳定性生长速率比通常在ICF研究中使用的众所周知的时间不连贯性和空间不一致具有额外的抑制。对于我们计算中使用的模型，刺激的拉曼散射与驱动脉冲之间的最大场比从0.2下降，对于具有角度小弹簧的单个非零拓扑电荷至0.05，对于具有角度动量的超弹力，具有角度动量分布和随机相对相。特别是，角度不一致不会引入额外的不良热电子。这打开了一种新颖的方式，可以用角动量的光线抑制LPI，并在各个维度，空间和角度的各个维度上沿着低LPI激光系统铺平道路。
Laser-plasma instability (LPI) is one of the main obstacles in laser-driven inertial confinement fusion (ICF) for achieving predictable and reproducible fusion at high gain. For the first time we have proved analytically and confirmed with three-dimensional particle-in-cell simulations that angular incoherence has additional and much stronger suppression of the instability growth rate than the well-known temporal incoherence and spatial incoherence usually used in ICF studies. For the model used in our calculations, the maximum field ratio between the stimulated Raman scattering and the driving pulses drops from 0.2 for the Laguerre-Gaussian pulse with a single non-zero topological charge to 0.05 for the super light spring with an angular momentum spread and random relative phases. In particular, angular incoherence does not introduce extra undesirable hot electrons. This opens a novel way to suppress LPI with the light of an angular momentum spread and paves the way towards a low LPI laser system with a super light spring of incoherence in all dimensions of time, space, and angle.
