为研究惯性约束聚变 (ICF)快点火的可能性 ,对相对论参数范围内激光等离子体相互作用作了大力研究。用超强激光系统和“网格粒子数”(PIC)模拟编码 ,研究了相对论激光自聚焦 ,超热电子、离子和中子产生。实验用具有 10 5 3nm激光波长、5 0 J能量和 0 .5～ 1ps脉宽的超强激光完成 ,激光强度为 10 19W/ cm2。大多数激光打靶在具有 10 0 μm等离子体标尺长度的预等离子体条件下进行。在预等离子体内激光脉冲行为的研究中观察到一个特别模式 ,激光一路穿透预等离子体到达原始平面靶面。在这些发射中 ,观察到能量超过 1Me V的超热电子。利用平面靶中种子金属层的Kα发射 ,研究了热电子的能量传输。用中子谱仪研究了光束聚变反应前的离子加速细节。激光有质动力自聚焦和热电子产生已用于压缩芯考察 12束 10 0 ps、1TW激光脉冲注入的加热效应 In order to study the possibility of fast ignition of inertial confinement fusion (ICF), the laser plasma interaction in the relativistic parameters has been studied intensively. Using superlattice laser systems and “particle-in-particle” (PIC) simulation coding, the relativistic laser autofocusing, hot electron, ion and neutron generation are studied. Experiments with 105nm laser wavelength, 5 0 J energy and 0.5 ~ 1ps pulse width super-laser to complete, the laser intensity of 1019W / cm2. Most laser shots are performed under pre-plasma conditions with a 10 0 μm plasma scale length. In the pre-plasma laser pulse behavior of the study observed a special mode, the laser penetrates the pre-plasma to reach the original plane target surface. In these launches, hot electrons with energies over 1 MeV were observed. Using the Kα emission of the seed metal layer in the planar target, the energy transfer of hot electrons has been studied. Using neutron spectrometer to study the detail of ion acceleration before beam fusion reaction. Laser-induced kinetic self-focusing and thermoelectron generation have been used to examine the heating effects of 12 bundles of 10 0 ps, ​​1TW laser pulses implanted