中国物理B ›› 2015, Vol. 24 ›› Issue (1): 14211-014211.doi: 10.1088/1674-1056/24/1/014211
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
吴朝辉a b c, 魏晓峰b, 左言磊b, 刘兰琴b, 张智猛b, 李敏b, 周煜梁b, 粟敬钦a
Wu Zhao-Hui (吴朝辉)a b c, Wei Xiao-Feng (魏晓峰)b, Zuo Yan-Lei (左言磊)b, Liu Lan-Qin (刘兰琴)b, Zhang Zhi-Meng (张智猛)b, Li Min (李敏)b, Zhou Yu-Liang (周煜梁)b, Su Jing-Qin (粟敬钦)a
摘要:
Chirped wideband pump and seed pulses are usually considered for backward Raman amplification (BRA) in plasmas to achieve an extremely high-power laser pulse. However, current theoretical models only contain either a chirped pump or a chirped seed. In this paper, modified three-wave coupling equations are proposed for the BRA in the plasmas with both chirped wideband pump and seed. The simulation results can more precisely describe the experiments, such as the Princeton University experiment. The optimized chirp and bandwidth are determined based on the simulation to enhance the output intensity and efficiency.
中图分类号: (Ultrafast processes; optical pulse generation and pulse compression)