论文标题
用当今的激光器创建QED光子喷气机
Creating QED Photon Jets with Present-Day Lasers
论文作者
论文摘要
具有量子电动力学（QED）模型的大规模，相对论的粒子模拟表明，高能（1 $ <e_γ\ Lessim $ 75 MEV）QED光子喷头，$ 10^{12} $ sr $^{ - 1} $可以与当今的Lasers和Planar and Planar和Planar and Inscruptions，未造成的速度创建。此过程涉及目标中的一个自动形成通道，以响应激光脉冲将聚焦（$ f $ number unity）紧密地集中到目标表面上。我们展示了通道的自我形成，以实验动机的预播，入射角和激光稳定性的实验动机变化，并使用得克萨斯州Petawatt的历史镜头数据在模拟中存在。我们估计，在MEV范围的10s中，可检测到的光子通量在150 FS脉冲中需要大约60 J。
Large-scale, relativistic particle-in-cell simulations with quantum electrodynamics (QED) models show that high energy (1$<E_γ\lesssim$ 75 MeV) QED photon jets with a flux of $10^{12}$ sr$^{-1}$ can be created with present-day lasers and planar, unstructured targets. This process involves a self-forming channel in the target in response to a laser pulse focused tightly ($f$ number unity) onto the target surface. We show the self-formation of a channel to be robust to experimentally motivated variations in preplasma, angle of incidence, and laser stability, and present in simulations using historical shot data from the Texas Petawatt. We estimate that a detectable photon flux in the 10s of MeV range will require about 60 J in a 150 fs pulse.
