摘要
本文报导在高纯Ｈｇ蒸气石英放电管中首次观测到峰值位于２２６．２ｎｍ左右（谱带宽６ｎｍ）属于准分子束缚→自由跃迁的漫射带辐射，实验测量了漫射带强度随放电电流、气体温度和密度的变化关系，获得漫射带最大信号输出的工作参量。数值拟合谱与实验谐相比较，确定出Ｈｇ２分子态和态平衡核间距差值ΔＲｅ＝Ｒｅ″－Ｒｅ′＝０．０８９±０．００３ｎｍ；电子态能量差ΔＴｅ＝Ｔｅ′－Ｔｅ″＝４６８８０±５００ｃｍ（－１）。
we report the first observation of 226.2nm diffuse emission band with 6nm band width which is tentatively assigned to the bound-free transition of Hg2 excimer in quartz dicharge tube of high pure mercury vapor.The dependences of diffuse band intensity on discarge current,gas temperature and Hg density are also carriied out for the better understanding of optimizing the working parameters for the new band.By comparing the numerically simulated spectra of Hg2 transition with the observed spectra at various temperatures,we have yielded the following spectroscopic constants for the and states of Hg2:△Te =Te'-Te' =46880 ±500cm(-1);△Re =Re'-Re'= 0.089±0.003nm.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
1996年第2期103-107,共5页
Journal of Optoelectronics·Laser
基金
福建省教委科学基金
福建师范大学青年科学基金
关键词
激光介质
激光光谱
漫射带
Homonuclear Hg2excimer
diffuse emission band.
