Enhanced laser-induced plasma channels in air

doi:10.1088/1674-1056/25/3/035203

中国物理B ›› 2016, Vol. 25 ›› Issue (3): 35203-035203.doi: 10.1088/1674-1056/25/3/035203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Enhanced laser-induced plasma channels in air

Yanlei Zuo(左言磊), Xiaofeng Wei(魏晓峰), Kainan Zhou(周凯南), Xiaoming Zeng(曾小明),Jingqin Su(粟敬钦), Zhihong Jiao(焦志宏), Na Xie(谢娜), Zhaohui Wu(吴朝辉)

1. Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China;
2. Science and Technology on Plasma Physics Laboratory, Mianyang 621900, China;
3. IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China

收稿日期:2015-10-19 修回日期:2015-11-09 出版日期:2016-03-05 发布日期:2016-03-05
通讯作者: Zhaohui Wu E-mail:wuzhaohui20050@163.com
基金资助:
Project supported by the Development Foundation of the Chinese Academy of Engineering Physics (Grant Nos. 2012A0401019 and 2013A0401019).

Enhanced laser-induced plasma channels in air

Yanlei Zuo(左言磊)^1,2,3, Xiaofeng Wei(魏晓峰)^1,2,3, Kainan Zhou(周凯南)^1,2,3, Xiaoming Zeng(曾小明)^1,2,3,Jingqin Su(粟敬钦)^1,2,3, Zhihong Jiao(焦志宏)¹, Na Xie(谢娜)^1,2, Zhaohui Wu(吴朝辉)¹

1. Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China;
2. Science and Technology on Plasma Physics Laboratory, Mianyang 621900, China;
3. IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2015-10-19 Revised:2015-11-09 Online:2016-03-05 Published:2016-03-05
Contact: Zhaohui Wu E-mail:wuzhaohui20050@163.com
Supported by:
Project supported by the Development Foundation of the Chinese Academy of Engineering Physics (Grant Nos. 2012A0401019 and 2013A0401019).

摘要/Abstract

摘要： Plasma is a significant medium in high-energy density physics since it can hardly be damaged. For some applications such as plasma based backward Raman amplification (BRA), uniform high-density and large-scale plasma channels are required. In the previous experiment, the plasma transverse diameter and density are 50-200 μm and 1-2×10¹⁹ cm^-3, here we enhance them to 0.8 mm and 8×10¹⁹ cm^-3, respectively. Moreover, the gradient plasma is investigated in our experiment. A proper plasma gradient can be obtained with suitable pulse energy and delay. The experimental results are useful for plasma physics and nonlinear optics.

关键词: plasma channel, laser-induced plasma, plasma measurement, plasma optics

Abstract: Plasma is a significant medium in high-energy density physics since it can hardly be damaged. For some applications such as plasma based backward Raman amplification (BRA), uniform high-density and large-scale plasma channels are required. In the previous experiment, the plasma transverse diameter and density are 50-200 μm and 1-2×10¹⁹ cm^-3, here we enhance them to 0.8 mm and 8×10¹⁹ cm^-3, respectively. Moreover, the gradient plasma is investigated in our experiment. A proper plasma gradient can be obtained with suitable pulse energy and delay. The experimental results are useful for plasma physics and nonlinear optics.

Key words: plasma channel, laser-induced plasma, plasma measurement, plasma optics

中图分类号: (Plasma sources)

52.50.Dg

52.50.Jm (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)) 52.38.Fz (Laser-induced magnetic fields in plasmas) 52.70.Kz (Optical (ultraviolet, visible, infrared) measurements)

左言磊, 魏晓峰, 周凯南, 曾小明, 粟敬钦, 焦志宏, 谢娜, 吴朝辉. Enhanced laser-induced plasma channels in air[J]. 中国物理B, 2016, 25(3): 35203-035203.

Yanlei Zuo(左言磊), Xiaofeng Wei(魏晓峰), Kainan Zhou(周凯南), Xiaoming Zeng(曾小明),Jingqin Su(粟敬钦), Zhihong Jiao(焦志宏), Na Xie(谢娜), Zhaohui Wu(吴朝辉). Enhanced laser-induced plasma channels in air[J]. Chin. Phys. B, 2016, 25(3): 35203-035203.

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Enhanced laser-induced plasma channels in air

Enhanced laser-induced plasma channels in air

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