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Absorption Spectroscopy of (8,1) Band in d3△-a3ПSystem of CS Radical
Chuan-liang Li,Lun-hua Deng*,Yan Zhang,Ji-lin Wei,Yang-qin Chen
Author NameAffiliationE-mail
Chuan-liang Li Department of Physics, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China  
Lun-hua Deng* State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China lhdeng@phy.ecnu.edu.cn 
Yan Zhang State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China  
Ji-lin Wei Department of Physics, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China  
Yang-qin Chen State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China  
Abstract:
The CS radical was generated by discharging the mixture gas of CS2 and Helium. The Doppler limited spectra of CS were recorded in the region of 12350~12950 cm-1 using optical heterodyne concentration modulation absorption spectroscopy. Three hundred and twenty-six lines were recorded and assigned to the d3△-a3П(8,1) band, in which eighty-three transitions were first observed. A set of improved molecular constants for the d3△(v=8) and a3П(8,1)(v=1) levels were determined by a non-linear least-squares fitting of all the lines to the effective Hamiltonian.
Key words:  CS radical, Concentration modulation absorption spectroscopy, Molecular constant
FundProject:
CS自由基的d3△-a3П(8, 1)带吸收光谱
李传亮,邓伦华*,张燕,魏计林,陈扬骎
摘要:
采用光外差-浓度调制吸收光谱技术测量了12350~12950 cm-1波段的氦气和二硫化碳混合气体放电生成硫化碳自由基分子的多普勒受限光谱. 通过光谱分析,发现了d3△-a3П(8, 1)带的326条谱线,其中有83条谱线为首次观测. 利用有效哈密顿量矩阵元,使用非线性最小二乘拟合方法对所有指认的谱线进行拟合,获得了d3△(v=8)和a3П(v=1)态的高精度分子常数.
关键词:  CS自由基,浓度调制吸收光谱,分子常数
DOI:10.1088/1674-0068/25/05/513-518
分类号: