Laser-ion acceleration in the relativistic transparency regime

该项目的重点是阐明集体等离子体过程在高功率激光驱动离子加速中的作用。这对激光驱动离子源的发展和推广应用具有重要意义。该项目涉及薄箔集体等离子体过程的数值和实验研究，这些薄箔经历了向相对论诱导透明制度的过渡。学生的任务包括：* 数值研究薄箔中相对论诱导透明的开始及其在离子加速中的作用;* 研究电子和离子对强激光体积传播的集体响应可用于控制离子加速的程度;* 利用高功率激光设施进行实验研究，以检验上述模拟方案的预测。

The project focuses on elucidating the role of collective plasma processes in high power laser-driven ion acceleration. This is important to the development of the laser-driven ion sources and by extension the application of those sources. The project involves numerical and experimental investigations of collective plasma processes in thin foils undergoing a transition to the relativistic induced transparency regime. It will determine the extent to which the final properties of the beam of accelerated ions can be controlled by manipulating the electrostatic acceleration fields, by inducing controllable collective plasma electron motion.The student's tasks include:* Numerical investigation of the onset of relativistic induced transparency in thin foils and the role this plays in ion acceleration;* Investigation of the extent to which the collective electron and ion response to the volumetric propagation of intense laser light can be used to control ion acceleration;* Experimental investigation to test the predictions of the above simulation programme using high power laser facilities.