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非链式化学HF(DF)激光器工作气体中电子分离的非稳定性和气体放电等离子体的自组织现象

BELEVTSEV A A FIRSOV K N KAZANTSEV S Yu KONONOV I G 张来明

BELEVTSEV A A, FIRSOV K N, KAZANTSEV S Yu, KONONOV I G, 张来明. 非链式化学HF(DF)激光器工作气体中电子分离的非稳定性和气体放电等离子体的自组织现象[J]. 中国光学, 2011, 4(1): 31-40.
引用本文: BELEVTSEV A A, FIRSOV K N, KAZANTSEV S Yu, KONONOV I G, 张来明. 非链式化学HF(DF)激光器工作气体中电子分离的非稳定性和气体放电等离子体的自组织现象[J]. 中国光学, 2011, 4(1): 31-40.
BELEVTSEV A A, FIRSOV K N, KAZANTSEV S Yu, KONONOV I G, ZHANG Lai-ming. Electron detachment instability and self-organization of gas discharge plasma in working mixtures of chemical non-chain HF(DF) lasers[J]. Chinese Optics, 2011, 4(1): 31-40.
Citation: BELEVTSEV A A, FIRSOV K N, KAZANTSEV S Yu, KONONOV I G, ZHANG Lai-ming. Electron detachment instability and self-organization of gas discharge plasma in working mixtures of chemical non-chain HF(DF) lasers[J]. Chinese Optics, 2011, 4(1): 31-40.

非链式化学HF(DF)激光器工作气体中电子分离的非稳定性和气体放电等离子体的自组织现象

基金项目: 

Supported by Russian Foundation for Basic Research Project(Grants No.08-08-00242 and 09-02-00475).

详细信息
  • 中图分类号: TN248.5

Electron detachment instability and self-organization of gas discharge plasma in working mixtures of chemical non-chain HF(DF) lasers

Funds: 

Supported by Russian Foundation for Basic Research Project(Grants No.08-08-00242 and 09-02-00475).

  • 摘要: 报道了放电引发的非链式HF(DF)激光器中的激活介质由电子碰撞负离子分离引起的电离非稳定性。这种非稳性出现在电极空间分离、脉冲CO2激光加热的基于SF6的混合气体的大体积放电中。实验研究了自引发体放电过程中由激光加热引起的放电等离子体的自组织现象以及由此在放电间隙的大部分区域形成的准周期等离子体结构。重点分析了等离子体结构随气体温度和注入能量的变化,讨论了等离子体自组织对电子碰撞分离不稳定性所产生的影响,解释了混合气体中由于电子碰撞使负离子消失导致的单等离子体通道移动的产生机理。
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