基模高斯激光与高能电子相互作用引起的波包形状变化  

Wave Packet Shape Changes Caused by the Interaction of Basic Mode Gauss Laser with High Energy Electrons

作　　者：许晓腾 XU Xiaoteng(College of Mathematics,Physics and Electronic Information Engineering,Wenzhou University,Wenzhou,China 325035)

机构地区：[1]温州大学数理与电子信息工程学院

出　　处：《温州大学学报（自然科学版）》2019年第4期47-53,共7页Journal of Wenzhou University(Natural Science Edition)

摘　　要：激光和电子的相互作用在现代物理学中扮演着极其重要的角色,比如使用高能激光实现核聚变和高能激光脉冲加速电子等.本文研究高能基模高斯型激光和高能电子相互作用后波形的变化情况.具体地说,首先,对基模高斯激光进行傅里叶变换,将其分解为平面波;其次,使用量子电动力学的方法研究光子与电子的散射过程;最后,将散射后的光子重新叠加,得到基模高斯型激光波包的改变.The interaction between laser and electron plays an extremely important role in modern physics, such as nuclear fusion by using high-energy laser and electrons accelerated by high-energy laser pulses. This paper studies the waveforms from the interaction between high energy fundamental mode Gauss laser and high energy electrons. Specifically, the fundamental mode Gauss laser is first Fourier transformed and decomposed into plane waves. Secondly, quantum electrodynamics is used to study the scattering process of photons and electrons. Finally, the scattered photons are re-superimposed to obtain the change of the fundamental mode Gauss-type laser wave packet.

关 键 词：基模高斯激光 傅里叶变换 树图近似 散射振幅 

分 类 号：O412.3[理学—理论物理]