Two-dimensional structure of PDP micro-discharge plasmas obtained using laser Thomson scattering
Two-dimensional structure of PDP micro-discharge plasmas obtained using laser Thomson scattering
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DOI：
10.1109/tps.2004.823980
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发表时间：
2004-02-01
影响因子：
1.5
通讯作者：
Muraoka, K
中科院分区：
文献类型：
--
作者：
Hassaballa, S;Yakushiji, M;Muraoka, K
激光汤姆逊散射（LTS）已被用于测量微放电等离子体中的电子密度和电子温度，用于等离子体显示器的研究。简要介绍了利用数据积累技术克服散射光子稀疏性的方法。然后，将LTS应用于微放电等离子体的技术进行了描述，其中使用一个专门设计的三光栅光谱仪已被证明是必不可少的。改进的实验装置，允许，第一次，收集激光LTS光谱的高度接近60 μ m的电极表面进行了讨论。给出了电极表面上方垂直方向上的电子密度和电子温度的空间分布。最后，延伸到两个维度的测量，即沿着电极表面和在不同的高度以上的电极，使覆盖放电前要作出的，提出并与光发射测量的结果进行比较。
Laser Thomson scattering (LTS) has been applied for measurements of the electron density and electron temperature in micro-discharge plasmas for plasma-display panel research. A brief description of the method for overcoming the sparsity of scattered photons by the data accumulation technique is presented. Then, the technique of applying LTS to micro-discharge plasmas is described where the use of a specially designed triple-grating spectrometer has turned out to be essential. Improvements in the experimental setup to allow, for the first time, to collect laser LTS spectra at heights as close as to 60 mum from the electrode surface are discussed. Spatial distributions of the electron density and electron temperature in the vertical direction above the electrode surface are presented. Finally, an extension of the measurements into two-dimensions, namely along the electrode surface and at different heights above the electrodes enabling to cover the discharge front to be made, are presented and compared with the results of optical emission measurements.