点火尺度等离子体中的泵耗和拉曼间隙

arXiv - PHYS - Plasma Physics Pub Date : 2024-09-08 DOI:arxiv-2409.05232

S. H. Cao, M. J. Rosenberg, A. A. Solodov, H. Wen, C. Ren

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引用次数: 0

摘要

利用平面内（PP）和平面外（SP）激光器组合的二维细胞内粒子模拟，研究了直驱惯性约束聚变点火条件下的激光等离子体不稳定性。结果表明，受激拉曼侧向散射会引起显著的泵浦耗竭，并在拉曼散射光谱中形成实验中观察到的缺口。

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Pump depletion and the Raman gap in ignition-scale plasmas

Laser-plasma instabilities under ignition conditions for direct-drive inertial confinement fusion are studied using two-dimensional Particle-in-Cell simulations with a combination of in-plane (PP) and out-of-the-plane (SP) lasers. The results show that stimulated Raman side scattering can induce significant pump depletion and form a gap in the Raman scattered light spectra that have been observed in experiments.

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arXiv - PHYS - Plasma Physics

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