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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
Evolution of metastable state molecules N-2(A(3)Sigma(+)(u)) in a nanosecond pulsed discharge: A particle-in-cell/Monte Carlo collisions simulation
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论文类型：期刊论文
发表时间：2012-01-01
发表刊物：PHYSICS OF PLASMAS
收录刊物：SCIE、EI
卷号：19
期号：1
ISSN号：1070-664X
摘要：A particle-in-cell plus Monte Carlo collisions method has been employed to investigate the nitrogen discharge driven by a nanosecond pulse power source. To assess whether the production of the metastable state N-2(A(3)Sigma(+)(u)) can be efficiently enhanced in a nanosecond pulsed discharge, the evolutions of metastable state N-2(A(3)Sigma(+)(u)) density and electron energy distribution function have been examined in detail. The simulation results indicate that the ultra short pulse can modulate the electron energy effectively: during the early pulse-on time, high energy electrons give rise to quick electron avalanche and rapid growth of the metastable state N-2(A(3)Sigma(+)(u)) density. It is estimated that for a single pulse with amplitude of -9 kV and pulse width 30 ns, the metastable state N-2(A(3)Sigma(+)(u)) density can achieve a value in the order of 10(9) cm(-3). The N-2(A(3)Sigma(+)(u)) density at such a value could be easily detected by laser-based experimental methods. (C) 2012 American Institute of Physics. [doi:10.1063/1.3677261]