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arXiv physics/0312055physics.plasm-phnlin.CDnlin.PSphysics.optics
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等离子体中Laser光束的不稳定性与平衡传输

Instability Versus Equilibrium Propagation of Laser Beam in Plasma

Pavel M. Lushnikov, Harvey A. Rose

摘要:

我们得到,第一次,前向受激布里渊散射的空间和时间非相干激光束的不稳定性,控制统计平衡和非平衡(不稳定)的自聚焦光束传输制度之间的过渡的分析理论。稳定性边界可作为惯性约束聚变设计的综合指导。以及进入稳定的制度,角扩散系数的解析表达式,这提供了一个必不可少的修正光束传输的几何光学近似。

英文摘要:

We obtain, for the first time, an analytic theory of the forward stimulated Brillouin scattering instability of a spatially and temporally incoherent laser beam, that controls the transition between statistical equilibrium and non-equilibrium (unstable) self-focusing regimes of beam propagation. The stability boundary may be used as a comprehensive guide for inertial confinement fusion designs. Well into the stable regime, an analytic expression for the angular diffusion coefficient is obtained, which provides an essential correction to a geometric optic approximation for beam propagation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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