论文标题
优化ELI-NP的直接激光驱动电子加速度和能量增益
Optimizing direct laser-driven electron acceleration and energy gain at ELI-NP
论文作者
论文摘要
我们使用与ELI-NP的多PW femtsecond激光器相关的特定参数来研究和讨论真空中的电子加速度与基本高斯脉冲相互作用。考虑到靠近焦点的线性和圆形极化高斯光束的特性特性，我们计算了束腰的最佳值，导致给定激光功率的最有能量的电子。最大最大宽度的最佳梁腰对应于几十个波长，$ΔW_0= \ left \ {13,23,41 \ right \}λ_0$，用于增加激光功率$ p_0 = \ lest = \ left \ left \ weft \ {0.1,1,10 \ rient \ rient \ rient \} $ pw。使用这些最佳值，我们发现在全脉冲相互作用中，平均能量增益为几种MEV和最高能量的电子，约为$ 160 $ MEV，在GEV范围内，在半脉冲相互作用的情况下。
We study and discuss electron acceleration in vacuum interacting with fundamental Gaussian pulses using specific parameters relevant for the multi-PW femtosecond lasers at ELI-NP. Taking into account the characteristic properties of both linearly and circularly polarized Gaussian beams near focus we have calculated the optimal values of beam waist leading to the most energetic electrons for given laser power. The optimal beam waist at full width at half maximum correspond to few tens of wavelengths, $Δw_0=\left\{13,23,41\right\}λ_0$, for increasing laser power $P_0 = \left\{0.1,1,10\right\}$ PW. Using these optimal values we found an average energy gain of a few MeV and highest-energy electrons of about $160$ MeV in full-pulse interactions and in the GeV range in case of half-pulse interaction.
