高强度紫外飞秒激光作为ICF“快点火”的点火驱动器具有独特的优势。第一,紫外光具有更大的临界密度,产生超热电子区域更靠近燃料区,这就简化了所有与把能量输运到燃料区的物理过程;第二,按照超热电子温度Iλ2定标率,在“快点火”要求的强度下（1020w/cm2）,紫外光刚好能够产生可以与燃料区高效率耦合的超热电子温度（1MeV）;此外,紫外光具有更好的可聚焦性,在较低的能量下就可以达到要求的强度。目前,大多数关于紫外飞秒激光与固体靶相互作用的研究集中于吸收机制和软X射线方面,关于硬X射线和超热电子方面的研究非常缺乏。Teubner等利用K-α线谱方法研究了KrF激光在固体靶中的吸收和超热电子产生,Broughto和Fedosjevs等研究了脉冲宽度为1～100ps的KrF激光辐照固体靶产生 High-intensity UV femtosecond laser has unique advantages as an ICF “quick fire” ignition driver. First, the UV light has a greater critical density, resulting in a region of hot electrons that is closer to the fuel zone, which simplifies all of the physical processes that transport energy to the fuel zone. Second, the ultra-hot electron temperature Iλ2 is scaled Rate at very fast ignition (1020w / cm2), UV just produces an extremely hot electron temperature (1MeV) that can be efficiently coupled with the fuel zone; in addition, UV light has better focusability, The required strength can be achieved with lower energy. At present, most studies on the interaction between UV femtosecond laser and solid target have focused on absorption mechanism and soft X-ray, and there is a lack of research on hard X-ray and hot electron. Teubner et al. Used K-α spectroscopy to study the absorption and superheat electron generation of KrF laser in a solid target. Broughto and Fedosjevs et al. Studied the generation of KrF laser-irradiated solid targets with a pulse width of 1 to 100 ps