Abstract:A large area surface discharge was realized in air/argon gas mixture by designing a discharge device with water electrodes. By using optical emission spectrum, the variations of the molecular vibrational temperature, the mean energy of electron, and the electronic excitation temperature as a function of the gas pressure were studied. The nitrogen molecular vibrational temperature was calculated according to the emission line of the second positive band system of the nitrogen molecule (C3Πu→B3Πg). The electronic excitation temperature was obtained by using the intensity ratio of Ar Ⅰ 763.51 nm(2P6→1S5) to Ar Ⅰ 772.42 nm (2P2→1S3). The changes in the mean energy of electron were studied by the relative intensity ratio of the nitrogen molecular ion 391.4 nm to nitrogen 337.1 nm. It was found that the intensity of emission spectral line increases with the increase in the gas pressure, meanwhile, the outline and the ratios of different spectral lines intensity also change. The molecular vibrational temperature, the mean energy of electron, and the electronic excitation temperature decrease as the gas pressure increases from 0.75×105Pa to 1×105 Pa.
Key words:Large area surface discharge;Vibrational temperature;Electronic excitation temperature
董丽芳,仝国良,张 玉,周 斌 . 大面积沿面放电等离子体温度的光谱研究 [J]. 光谱学与光谱分析, 2014, 34(04): 919-921.
DONG Li-fang, TONG Guo-liang, ZHANG Yu, ZHOU Bin . Study on Plasma Temperature of a Large Area Surface Discharge by Optical Emission Spectrum. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(04): 919-921.
[1] Dong B, Bauchire J M, Pouvesle J M, et al. Appl. Phys., 2008, 41: 155. [2] Gibalov V I, Pietsch G J. Appl. Phys., 2000, 33: 2618. [3] Nie QY, Cao Z, Ren C S, et al. New J. Phys., 2009, 11: 115015. [4] Morfill G E, Shimizu T, Steffes B, et al. New J. Phys. 2009, 11: 115019. [5] Eto H, Ono Y, Ogino A, et al. Appl. Phys. Lett., 2008, 93: 221502. [6] Wang Dachang, Zhao Di, Feng Kecheng, at el. Appl. Phys. Lett., 2011, 98: 16501. [7] Simor Marcel, Ráhel′ Jozef, Vojtek Pavel, at el. Appl. Phys. Lett., 2002, 8: 2716. [8] Qayyum A, Shaista Zeb, Naveed M A, et al. J. Quant. Spectrosc. Radiat. Transf., Avaliable Online 24 February, 2007. [9] Herzberg G. Molecular Spectra and Molecular Structure I. Spectra of Diatomic Molecules. Beijing: Science Press(北京:科学出版社),1983. 155. [10] LI Xue-chen, LIU Run-fu, JIA Peng-ying, et al. Acta Physica Sinica(物理学报), 2012, 11:115205. [11] Shemansky D E, Broadfoot A L. J. Quant. Spectrosc. Radiat. Transfer, 1971, 11: 1385. [12] Dong Lifang,Ran Junxia,Mao Zhi-guo. Acta Physica Sinica(物理学报),2005,54(5): 2167.