Study on Concentration Modulation Spectra of the Molecular Ion Beam by AC Glow Discharge
SUN Dian-ping, ZHU Yi, YANG Xiao-hua, YING Xu-ping, LIU Yu-yan, CHEN Yang-qin*
Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Ministry of Education, and Department of Physics, East China Normal University, Shanghai 200062, China
Abstract：An experimental apparatus using an AC discharge was developed for producing molecular ion beam. The emission spectral intensity of N+2 is stronger than that of N2, and a very high ratio of N+2(B)/N2(C) up to 6∶1, was achieved in N2 discharge. The effects and processes of N2 discharge, and the concentration modulation spectra were studied. The vibrational temperature and rotational temperature of N+2 molecular ions beam were calculated to be 3 310 and 282 K respectively from the emission spectra.
Key words：Glow discharge;Nitrogen;Concentration modulation;Emission spectroscopy;Vibrational temperature;Rotational temperature
孙殿平，朱轶，杨晓华，应许屏，刘煜炎，陈扬骎*. 离子分子束源的浓度调制光谱研究[J]. 光谱学与光谱分析, 2006, 26(09): 1594-1597.
SUN Dian-ping, ZHU Yi, YANG Xiao-hua, YING Xu-ping, LIU Yu-yan, CHEN Yang-qin* . Study on Concentration Modulation Spectra of the Molecular Ion Beam by AC Glow Discharge . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(09): 1594-1597.
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