论文标题
纳米秒激光脉冲传播和相关不稳定性的动力学的动力学
Dynamics of nanosecond laser pulse propagation and of associated instabilities in a magnetized underdense plasma
论文作者
论文摘要
等离子体中强激光束的传播和能量耦合是激光驱动的惯性限制融合中的关键问题。已经唤起了将磁场应用于这种设置，以增强燃料限制和加热，并减轻激光能量损失。在这里，我们报告了实验测量值，表明在不足的磁化等离子体中传播的高功率激光束的传播和平滑性增加。我们还测量了增强的反向散射，我们的模拟显示，这是由于热电子限制引起的，从而导致靶标预热减少。
The propagation and energy coupling of intense laser beams in plasmas are critical issues in laser-driven inertial confinement fusion. Applying magnetic fields to such a setup has been evoked to enhance fuel confinement and heating, and mitigate laser energy losses. Here we report on experimental measurements demonstrating improved transmission and increased smoothing of a high-power laser beam propagating in an underdense magnetized plasma. We also measure enhanced backscattering, which our simulations show is due to hot electrons confinement, thus leading to reduced target preheating.
