The Laser-Induced Fluorescence Spectrum of Jet-Cooled Diatomic Sulfur in Ultraviolet Region

doi:10.3964/j.issn.1000-0593(2017)09-2792-07

	The Laser-Induced Fluorescence Spectrum of Jet-Cooled Diatomic Sulfur in Ultraviolet Region
	Ma Xin-wen2 ; Wang Shu-long 1,2; Xiang Qian-lan 3; Zhao Dong-mei2 ; Yang Jie2
刊名	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2017-09-01
卷号	37 页码:2792-2798
关键词	Diatomic sulfur molecule Laser-induced fluorescence spectroscopy Low energy excited state Electronic state structure Homogeneous perturbation
ISSN号	1000-0593
DOI	10.3964/j.issn.1000-0593(2017)09-2792-07
英文摘要	The time-resolved and vibrational emission-resolved laser-induced fluorescence (LIF) spectra of jet -cooled supersonic diatomic sulfur molecule S-2 have been studied in the range of 30 400 similar to 34 400 cm(-1), and 184 bands were observed with high (0.1 cm(-1)) and low (0.3 cm(-1)) resolutions. 84 vibrational transitions were assigned to the B-3 Sigma(-)(u)-X-3 Sigma(-)(g) and B" (3)Pi(u)-X-3 Sigma(-)(g), and the molecular constants in the excited states B-3 Sigma(-)(u)upsilon=0 similar to 9 and B" (3)Pi(u)upsilon=2 similar to 12, including rotational constants, spin -orbit coupling constants, spin-rotation coupling constants, and spin-spin coupling constants, were obtained. The equilibrium molecular geometry in the vibronic ground state of B-3 Sigma(-)(u) was determined by high-resolution spectrum. As there is perturbation between the B-3 Sigma(-)(u) and B'' (3)Pi(u) states of S-2 molecule, the vibrational level intervals, spin-spin coupling constants and spin-orbit coupling constants of B-3 Sigma(-)(u) and B" (3)Pi(u) states are anomalous variation, as well as the intensity of rotational transition and the transition selection rules. The anomalous behavior of the rovibrational spectra was qualitatively explained by the homogeneous perturbations between (3)Sigma-(3)Pi states.
WOS关键词	EXCITATION-SPECTRA
WOS研究方向	Spectroscopy
语种	英语
出版者	OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
WOS记录号	WOS:000411777800023
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/45676]
专题	近代物理研究所_实验物理中心
通讯作者	Yang Jie
作者单位	1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 3.Xianyang Normal Univ, Xianyang 712000, Peoples R China
推荐引用方式 GB/T 7714	Ma Xin-wen,Wang Shu-long,Xiang Qian-lan,et al. The Laser-Induced Fluorescence Spectrum of Jet-Cooled Diatomic Sulfur in Ultraviolet Region[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2017,37:2792-2798.
APA	Ma Xin-wen,Wang Shu-long,Xiang Qian-lan,Zhao Dong-mei,&Yang Jie.(2017).The Laser-Induced Fluorescence Spectrum of Jet-Cooled Diatomic Sulfur in Ultraviolet Region.SPECTROSCOPY AND SPECTRAL ANALYSIS,37,2792-2798.
MLA	Ma Xin-wen,et al."The Laser-Induced Fluorescence Spectrum of Jet-Cooled Diatomic Sulfur in Ultraviolet Region".SPECTROSCOPY AND SPECTRAL ANALYSIS 37(2017):2792-2798.