Backward Raman amplification in plasmas with chirped wideband pump and seed pulses

doi:10.1088/1674-1056/24/1/014211

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

Backward Raman amplification in plasmas with chirped wideband pump and seed pulses

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

a Department of Electric-optics, Nanjing University of Science and Technology, Nanjing 210094, China;
b Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;
c Science and Technology on Plasma Physics Laboratory, Mianyang 621900, China

收稿日期:2014-05-25 修回日期:2014-08-08 出版日期:2015-01-05 发布日期:2015-01-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11305157) and the Development Foundation of China Academy of Engineering Physics Laboratory (CAEPL) (Grant No. 2013A0401019).

Backward Raman amplification in plasmas with chirped wideband pump and seed pulses

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

a Department of Electric-optics, Nanjing University of Science and Technology, Nanjing 210094, China;
b Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;
c Science and Technology on Plasma Physics Laboratory, Mianyang 621900, China

Received:2014-05-25 Revised:2014-08-08 Online:2015-01-05 Published:2015-01-05
Contact: Su Jing-Qin E-mail:sujingqin@hotmail.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11305157) and the Development Foundation of China Academy of Engineering Physics Laboratory (CAEPL) (Grant No. 2013A0401019).

摘要/Abstract

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.

关键词: ultrashort pulse generation, Raman lasers, laser-plasma interactions, plasma simulation

Abstract:

Key words: ultrashort pulse generation, Raman lasers, laser-plasma interactions, plasma simulation

中图分类号: (Ultrafast processes; optical pulse generation and pulse compression)

42.65.Re

42.55.Zz (Random lasers) 52.38.-r (Laser-plasma interactions) 52.65.-y (Plasma simulation)

吴朝辉, 魏晓峰, 左言磊, 刘兰琴, 张智猛, 李敏, 周煜梁, 粟敬钦. Backward Raman amplification in plasmas with chirped wideband pump and seed pulses[J]. 中国物理B, 2015, 24(1): 14211-014211.

Wu Zhao-Hui (吴朝辉), Wei Xiao-Feng (魏晓峰), Zuo Yan-Lei (左言磊), Liu Lan-Qin (刘兰琴), Zhang Zhi-Meng (张智猛), Li Min (李敏), Zhou Yu-Liang (周煜梁), Su Jing-Qin (粟敬钦). Backward Raman amplification in plasmas with chirped wideband pump and seed pulses[J]. Chin. Phys. B, 2015, 24(1): 14211-014211.

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Backward Raman amplification in plasmas with chirped wideband pump and seed pulses

Backward Raman amplification in plasmas with chirped wideband pump and seed pulses

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