Induced chirp in laser wake-field generation

被引：1
|
作者：
Taghipour, Meisam [1 ]
Mirzanejhad, Saeed [1 ]
Sohbarzadeh, Farshad [1 ]
Asri, Mehdi [2 ]
机构：
[1] Mazandaran Univ, Dept Phys, Fac Sci, Babol Sar, Iran
[2] Islamic Azad Univ, Dept Phys, Chalous Branch, Chalous, Iran
来源：
PHYSICA SCRIPTA | 2012年 / 85卷 / 03期
关键词：
PULSE-SHAPE; PLASMA;
D O I：
10.1088/0031-8949/85/03/035505
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Particle-in-cell simulation is used to illustrate induced chirp in the laser wake-field generation experiment. The evolution of the laser pulse characteristics and the wake-field amplitude is investigated numerically. The local frequency of the laser pulse is influenced during wake-field excitation. The numerical result shows that the negative Gaussian chirp profile is the mainly induced chirp throughout the laser pulse. Hence, the induced negative Gaussian chirp has a significant influence on wake-field generation and consequently on the acceleration gradient in the wake-field acceleration.
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页数：4
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