应用一维粒子模拟方法（Ｐａｒｔｉｃｌｅ－ｉｎ－Ｃｅｌ）数值研究了超短超强激光（Ｉλ２＞１０１８Ｗμｍ２／ｃｍ２）和稀薄等离子体相互作用后等离子体尾波的产生及其对电子的加速。结果表明，单束激光和拍波与稀薄等离子体相互作用后，在等离子体中都能激发起尾波，但拍波激发的等离子体尾波的强度和波长较大，同时等离子体中的电子动量也给加速得比较大 Particle-in-Cel numerical simulation was used to study the plasma coda wave generation and its electron acceleration due to the interaction between ultrashort superlattice laser (Iλ2> 1018Wμm2 / cm2) and rarefaction plasma. The results show that the single laser beam and the beat wave interact with the lean plasma, and the wake wave can be excited in the plasma. However, the intensity and wavelength of the plasma wave excited by the beat wave are large. At the same time, the electron in the plasma Momentum to accelerate too much