Surface transport of energetic electrons in intense picosecond laser-foil interactions
Surface transport of energetic electrons in intense picosecond laser-foil interactions
复制标题
DOI：
10.1063/1.3655909
复制
发表时间：
2011-10
影响因子：
4
通讯作者：
R. Gray;Xiao-Hui Yuan;D. Carroll;C. Brenner;M. Coury;M. Quinn;O. Tresca;B. Zielbauer;B. Aurand;V. Bagnoud;J. Fils;T. Kuehl;X. Lin;Chunling Li;Y. Li;M. Roth;D. Neely;P. McKenna
中科院分区：
文献类型：
--
作者：
R. Gray;Xiao-Hui Yuan;D. Carroll;C. Brenner;M. Coury;M. Quinn;O. Tresca;B. Zielbauer;B. Aurand;V. Bagnoud;J. Fils;T. Kuehl;X. Lin;Chunling Li;Y. Li;M. Roth;D. Neely;P. McKenna
测量从受强皮秒激光脉冲照射的薄箔目标发射的高能电子的角度分布，将其作为激光入射角、强度和偏振的函数。尽管发现逃逸的快速电子群主要在入射角≥65°时沿着目标表面传输，与早期在较低强度下的工作一致，后表面质子加速测量表明，无论入射角如何，显着的电子流也在目标内纵向传输。这些发现对激光-固体相互作用的许多应用都很有意义，包括惯性聚变能的先进方案。
The angular distribution of energetic electrons emitted from thin foil targets irradiated by intense, picosecond laser pulses is measured as a function of laser incidence angle, intensity, and polarization. Although the escaping fast electron population is found to be predominantly transported along the target surface for incidence angles ≥65°, in agreement with earlier work at lower intensities, rear-surface proton acceleration measurements reveal that a significant electron current is also transported longitudinally within the target, irrespective of incident angle. These findings are of interest to many applications of laser-solid interactions, including advanced schemes for inertial fusion energy.