Temporal evolution of dielectric barrier discharge microplasma
Temporal evolution of dielectric barrier discharge microplasma
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DOI：
10.1063/1.4749825
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发表时间：
2012-09-03
影响因子：
4
通讯作者：
Shimizu, Kazuo
中科院分区：
文献类型：
--
作者：
Blajan, Marius;Shimizu, Kazuo
利用发射光谱和成像技术对大气压介质阻挡放电微等离子体进行了分析。在微放电水平上，观察到了3%N2/Ar气体中放电的时间演化及其演化模式。用快速增强型电荷耦合器件（ICCD）照相机观察到的微等离子体的光发射与放电电流的演变相关。最高强度的光发射发生在放电电流的峰值。放电的演变表现为流光到达阴极，阴极层的形成，阴极层的增强，和阴极层衰减。用ICCD照相机和光谱仪在对应于放电电流的不同时间测量在696.5nm处的Ar I峰和在337.1nm处的N-2第二正带系统（N-2SPS）峰，显示出与用ICCD照相机成像所观察到的类似的时间演变。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4749825]
Analysis of dielectric barrier discharge microplasma at atmospheric pressure was carried out using emission spectroscopy and imaging techniques. Temporal evolution of the discharge and also its filamentary mode was observed for the discharge in 3% N-2 in Ar at the microdischarge level. Light emission from microplasma observed with the fast intensified charge coupled device (ICCD) camera for imaging was correlated with the evolution of the discharge current. The highest intensity of light emission occurred at the peak of the discharge current. The evolution of the discharge showed streamer reaching cathode, cathode layer formation, cathode layer enhancement, and cathode layer decay. Measurements of the Ar I peak at 696.5 nm and N-2 second positive band system (N-2 SPS) peak at 337.1 nm with the ICCD camera and spectrometer at various times corresponding to the discharge current showed similar time evolution as observed with the ICCD camera for imaging. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4749825]