论文标题
在经典射线追踪方案中考虑斑点尺度弯曲方案，用于在间接驱动点火条件下传播现实的脉冲
Accounting for speckle scale beam-bending in classical ray tracing schemes for propagating realistic pulses in indirect drive ignition conditions
论文作者
论文摘要
我们提出了血浆流动引起的平滑激光束偏差的半分析模型。基于对斑点的高斯描述，该模型包括空间，时间和极化平滑技术，该技术通过流体动力模拟发出的拟合，具有对电磁波的差异描述。然后将该光束弯曲模型包括在射线追踪算法中，并经过精心验证。当在对NIF实验的全尺度模拟中用作后处理，以在内部锥体的繁殖中，沿激光路径的光束弯曲会影响Hohlraum内部的折射条件和能量沉积，并且可以解释异常的折射测量值，某些NIF实验中所谓的Glint Glint。
We propose a semi-analytical modeling of smoothed laser beams deviation induced by plasma flows. Based on a Gaussian description of speckles, the model includes spatial, temporal and polarization smoothing techniques,through fits issued from hydrodynamic simulations with a paraxial description of electromagnetic waves. This beam bending model is then included in a ray tracing algorithm, and carefully validated. When applied as a post-process to the propagation of the inner cone in a full-scale simulation of a NIF experiment,the beam bending along the path of the laser affects the refraction conditions inside the hohlraum and the energy deposition, and could explain the anomalous refraction measurements, the so-called glint observed in some NIF experiments.
