组合激光脉冲激发的等离子体尾场的参数研究  

Parameter Study of a Plasma Wakefield Driven by Combined Laser Pulses

作　　者：西日艾·买买提 沙依甫加马力·达吾来提[1] 谢柏松[1] 

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046 [2]北京师范大学核科学与技术学院,北京100875

出　　处：《新疆大学学报（自然科学版）》2015年第3期309-313,356,共6页Journal of Xinjiang University(Natural Science Edition)

基　　金：国家自然科学基金(11175023;11305010;11335013;11165014;11465018)

摘　　要：本文通过数值和解析方法分析了对称强激光脉冲和弱激光脉冲的前后结合所形成的混合激光激发的尾场的参数对尾场势的影响.讨论了在弱脉冲的位置有所改动的条件下,尾场最大和最小势随各激光脉冲参数变化的敏感度.Electron acceleration in the first cycle of a plasma wakefield driven by combined two laser pulses with different intensity and pulse duration is investigated analytically and numerically. It is found that the combined laser pulses can efficiently modify the plasma wakefield potential and phase portrait of the electron dynamics. The optimum combination of two laser pulses to maximize the net energy gain of the accelerated electrons is discussed.

关 键 词：激光器 等离子体 尾场 电子加速 

分 类 号：O539[理学—等离子体物理]