Terahertz radiation from oscillating electrons in laser-induced wake fields

被引：10

作者：

Cao, Li-Hua ^{[1
]}

Yu, Wei ^{[2
]}

Xu, Han ^{[2
]}

Zheng, Chun-Yang ^{[1
]}

Liu, Zhan-Jun ^{[1
]}

Li, Bin ^{[1
]}

Bogaerts, A. ^{[3
]}

机构：

[1] Inst. Appl. Phys. and Compl. Math., P.O. Box 8009, Beijing 100088, China

[2] Shanghai Inst. Opt. and Fine Mech., Shanghai 201800, China

[3] Department of Chemistry, University of Antwerp, B-2610 Wilrijk-Antwerp, Belgium

来源：

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | 2004年 / 70卷 / 4 2期

关键词：

Bandwidth - Computer simulation - Electric field effects - Laser pulses - Mathematical models - Radiation effects - Resonance - Wave propagation;

D O I：

10.1103/PhysRevE.70.046408

中图分类号：

学科分类号：

摘要：

Two-dimensional particle-in-cell simulations for the interaction of a fs pulse with a low-density plasma were discussed. The temporal evolution and spatial distribution of terahertz electron current developed in a low-density plasma layer were also presented. It was found that laser and plasma parameter such as laser intensity, background plasma density, and pulse width were of key importance to the process. It was also observed that the radiation peaked at at 6.4 THz, with 900 fs duration and 9% bandwidth, can be generated in a plasma of density 5 × 1017 cm-3.

引用

页码：046408 / 1