Observations of the high vibrational levels of N2(B 3Πg) in the Lewis–Rayleigh afterglow of nitrogen
Observations of the high vibrational levels of N2(B 3Πg) in the Lewis–Rayleigh afterglow of nitrogen
复制标题
氮路易斯-瑞利余辉中 N2(B 3Πg) 高振动能级的观测
DOI：
10.1063/1.433483
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发表时间：
1976
影响因子：
4.4
通讯作者：
A. Ung
中科院分区：
文献类型：
--
作者：
A. Ung
在传统的放电-流动系统中，对氮余辉中的第一个正极系统进行了光学研究。在高达20托的压力下，很容易观察到v ' =13的振动水平。在足够高的[N]和N2纯度条件下，首次在Lewis-Rayleigh余辉中观察到v ' > 13的N2（B 3Πg）的高振动能级。从ΔV=4, 5，和6波段，v '高达26已被确定。根据所观察到的压力、温度、原子浓度和气体纯度对发射带强度的影响，简要讨论了形成这些高振动能级的激发过程。
Optical studies of the first positive system in the nitrogen afterglow were conducted in a conventional discharge ‐flow system. The vibrational level of v′=13 was observed readily at pressures up to 20 torr. For the first time, high‐vibration levels of N2(B 3Πg) with v′≳13 were observed in the Lewis–Rayleigh afterglow under conditions of sufficiently high [N] and purity of N2. Bands from ΔV=4, 5, and 6 with v′ up to 26 have been identified. Based on the observed effects of pressure, temperature, atom concentration, and gas purity on the intensity of the emission bands, excitation processes responsible for the formation of these high‐vibration levels are briefly discussed.