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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Professor Dr. Hongbin Ding
其他任职：物理学院学术委员会主任，等离子体联合研究中心主任,中国光学工程学会LIBS专委会副主任, 中国核学会核聚变等离子体分会常务理事，辽宁省物理学会副理事长，国际ITER-ITPA 委员
性别：男
毕业院校：巴塞尔大学
学位：博士
所在单位：物理学院
学科：等离子体物理. 光学工程
联系方式：hding@dlut.edu.cn
电子邮箱：hding@dlut.edu.cn
Spatially Resolved N-2(A(3)Sigma(+)(u), nu=0) Decay Studies in the Pulsed Direct-Current Nitrogen Discharge using the Laser-Induced-Fluorescence Technique
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论文类型：期刊论文
发表时间：2014-03-01
发表刊物：CHINESE PHYSICS LETTERS
收录刊物：SCIE、ISTIC
卷号：31
期号：3
ISSN号：0256-307X
摘要：We focus on the investigation of the spatial distribution and temporal evolution of N-2(A(3)Sigma(+)(u), nu = 0) in a very early afterglow of a pulsed dc nitrogen discharge. The results indicate that a fast quenching process of N-2(A(3)Sigma(+)(u), nu = 0) exists in the very early afterglow. We study the dependence of this fast quenching process on the discharge pressure 20-40 torr. It seems that this fast quenching behavior of N-2(A(3)Sigma(+)(u), nu = 0) found in our experiment can be ascribed to the combined action of pooling reaction and collisions with N atoms through N-2(A(3)Sigma(+)(u))+N-2(A(3)Sigma(+)(u))-> N-2*+N-2(N-2*=N-2(B-3 Pi(g), C-3 Pi(u), C'(3) Pi(u), C ''(5) Pi(u))) and N-2(A(3)Sigma(+)(u))+N(S-4)-> N(P-2)+N-2, respectively. Meanwhile, the decay studies of N-2(A(3)Sigma(+)(u), nu = 0) near the anode and cathode infer that the production of N(S-4) atoms does not distribute uniformly along the axis of the discharge gap at relatively low pressure, and this effect becomes gradually inconspicuous with the increasing discharge pressure.