The influence of plasma density decreasement by pre-pulse on the laser wakefield acceleration

Autor: Ke-Gong Dong, Yu-Chi Wu, Bin Zhu, Ying-Ling He, Wei-Min Zhou, Lei-Feng Cao, Hong-Jie Liu, Zong-Qing Zhao, Xian-Lun Wen, Chun-Ye Jiao, Wei Hong, Yu-Qiu Gu, Bao-Han Zhang, Xiao-Fang Wang
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: AIP Advances, Vol 1, Iss 4, Pp 042157-042157-7 (2011)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.3666041
Popis: In the laser wakefield acceleration, the generation of electron beam is very sensitive to the plasma density. Not only the laser-wakefield interaction, but also the electron trapping and acceleration would be effected by the plasma density. However, the plasma density could be changed in the experiment by different reasons, which will result in the mismatch of parameters arranged initially. Forward Raman scattering spectrum demonstrated that the interaction density was decreased obviously in the experiment, which was verified by the pre-pulse conditions and two-dimensional particle-in-cell simulations. It was demonstrated that the plasma density was very important on the self-evolutions and energy coupling of laser pulse and wakefield, and eventually the energy spectrum of electron beam.
Databáze: Directory of Open Access Journals