物理学报2012，Vol.61Issue(12)：188-195,8.
N2第二正带系发射光谱的理论计算及实验研究
Theoretical and experimental study of emission spectrum of the second positive system of N2
摘要
Abstract
The optical emission spectrum of the second positive system of N2（CUHu -BaHg） is analyzed and calculated based on the energy structure of the triplet systems of nitrogen radicals. Some key parameters of the equation for the radiative transition intensity are evaluated theoretically, including the potentials of the upper and lower states obtained from diagonalizing their Hamiltonian matrices, the electronic transition moments calculated by using r-centroid approximation, and the Einstein coefficients of different vib-rotational levels. For comparing with the theoretical spectra, we achieve the measured results from corona discharge experiments of N2 and Ar. By fitting the measured spectral intensities and the calculated ones, the vibrational and the rotational temperatures are determined approximately to be 4300 K and 800 K. The results also demonstrate that with the reduction of nitrogen concentration, the intensity of N2 radiative state first increases and then decreases due to Penning excitation from argon metastable states. The experimental results verify the correctness of the theoretical calculations on the second positive system.关键词
第二正带系/发射光谱/跃迁概率/电晕放电Key words
second positive system/emission spectrum/transition probability/corona discharge分类
数理科学引用本文复制引用
翟晓东,丁艳军,彭志敏,罗锐..N2第二正带系发射光谱的理论计算及实验研究[J].物理学报,2012,61(12):188-195,8.基金项目
国家自然科学基金（批准号：51176085）资助的课题. （）
