|
|
|
|
|
|
| The Laser-Induced Fluorescence Spectrum of Jet-Cooled Diatomic Sulfur in Ultraviolet Region |
| WANG Shu-long1, 2，XIANG Qian-lan3，ZHAO Dong-mei1，MA Xin-wen1，YANG Jie1* |
1. Institute of Modern Physics，Chinese Academy of Sciences，Lanzhou 730000，China
2. University of Chinese Academy of Sciences，Beijing 100039，China
3. Xianyang Normal University，Xianyang 712000，China |
|
|
|
|
Abstract The time-resolved and vibrational emission-resolved laser-induced fluorescence (LIF) spectra of jet-cooled supersonic diatomic sulfur molecule S2 have been studied in the range of 30 400~34 400 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 3Σ-ｕ-Ｘ 3Σ-ｇ and Ｂ″ 3Πｕ-Ｘ 3Σ-ｇ, and the molecular constants in the excited states Ｂ 3Σ-ｕ ν=0～9 and Ｂ″ 3Πｕ ν=2～12, 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 3Σ-ｕ was determined by high-resolution spectrum. As there is perturbation between the Ｂ 3Σ-ｕ and Ｂ″ 3Πｕ states of S2 molecule, the vibrational level intervals, spin-spin coupling constants and spin-orbit coupling constants of Ｂ 3Σ-ｕ and Ｂ″ 3Πｕ 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 3Σ-3Π states.
|
|
Received: 2016-07-10
Accepted: 2016-12-19
|
|
|
|
Corresponding Authors:
YANG Jie
E-mail: jie.yang@impcas.ac.cn
|
|
[1] Noll K S，McGrath M A，Trafton L M，et al. Science，1995，267(5202)： 1307.
[2] Graham J I. Containing Papers of a Mathematical and Physical Character，1910，84(571)： 311.
[3] Meakin J E，Barrow R F. Canadian Journal of Physics，1962，40(3)： 377.
[4] Barrow R F，Du Parcq R P，Meyer B. Elemental Sulfur. New York: Interscience，1965. 251.
[5] Meyer K A，Crosley D R. Canadian Journal of Physics，1973，51(20)： 2119.
[6] Bondybey V E，English J H. The Journal of Chemical Physics, 1978，69(5)： 1865.
[7] Matsumi Y，Munakata T，Kasuya T. The Journal of Chemical Physics，1984，81(3)： 1108.
[8] Matsumi Y，Suzuki T，Munakata T，et al. The Journal of Chemical Physics，1985，83(8)： 3798.
[9] Green M E，Western C M. The Journal of Chemical Physics，1996，104(3)： 848.
[10] YU Xu-feng，ZHANG Zhao-xia，ZHENG Xian-feng，et al(余旭锋，张朝霞，郑贤峰，等). Journal of Atomic and Molecular Physics(原子与分子物理学报)，2008，25(4)： 795.
[11] Peterson D A，Schlie L A. The Journal of Chemical Physics，1980，73(4)： 1551.
[12] Quick Jr C R，Weston Jr R E. The Journal of Chemical Physics，1981，74(9)： 4951.
[13] Wei Changli，Zhang Xiaomei，Ding Dajun，et al. Chinese Physics B，2016，25(1)： 013102.
[14] Wicke B G，Field R W，Klemperer W. Journal of Chemical Physics，1972，56： 5758. |
| [1] |
ZHOU Meng-ran, HU Feng*, YAN Peng-cheng, LIU Dong. Laser Induced Fluorescence Spectrum Analysis of Water Inrush in Coal Mine Based on FCM[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(05): 1572-1576. |
| [2] |
WANG Xiang1, 2, 3, ZHAO Nan-jing1, 3*, YU Zhi-min2, MENG De-shuo1, 3, XIAO Xue1, 3, ZUO Zhao-lu1, 3,. Detection Method Progress and Development Trend of Organic Pollutants in Soil Using Laser-Induced Fluorescence Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(03): 857-863. |
| [3] |
WANG Ya1,2, ZHOU Meng-ran1*, YAN Peng-cheng1, HE Chen-yang1, LIU Dong1 . Identification of Coalmine Water Inrush Source with PCA-BP Model Based on Laser-Induced Fluorescence Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(03): 978-983. |
| [4] |
YAN Peng-cheng1, ZHOU Meng-ran1*, LIU Qi-meng2, 3, WANG Rui1, LIU Jun1 . Research on the Source Identification of Mine Water Inrush Based on LIF Technology and PLS-DA Algorithm [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(09): 2858-2862. |
| [5] |
YAN Peng-cheng1, ZHOU Meng-ran1*, LIU Qi-meng2, 3, ZHANG Kai-yuan1, HE Chen-yang1 . Research on the Source Identification of Mine Water Inrush Based on LIF Technology and SIMCA Algorithm [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(01): 243-247. |
| [6] |
WANG Lu-fei, WU Qi-jun, ZU Li-li*. Laser-Induced Fluorescence of 1-Methylnaphthalene in a Supersonic Jet Expansion [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 2965-2968. |
| [7] |
ZHENG Wen-li1,2,LI Zhi-wen1,WANG Xue-feng2. Energy Levels of Hydrogenic Impurities in InAs Quantum Ring[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(03): 607-610. |
| [8] |
ZHANG Lian-shui,ZHANG Gui-yin,HAN Xiao-feng. Self-Absorption of NO Fluorescence Induced by Two-Photon [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 925-927. |
| [9] |
ZHANG Lian-shui1, SUN Bo1, ZHANG Gui-yin1,2，ZHAO Xiao-hui1 . Laser Induced Dispersed Fluorescence Spectra of NO2 in the Range of 550-740 nm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(03): 416-419. |
|
|
|
|
