Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy

doi:10.1063/1674-0068/cjcp2001010

	Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy
	Li, Bao 1; Wang, Li 1; Fang, Bo 3; Zhao, Wei-xiong 3; Deng, Lun-hua 1; Xu, Huai-liang 1,2
刊名	CHINESE JOURNAL OF CHEMICAL PHYSICS
	2020-08-01
卷号	33
关键词	Glow discharge OH radical Concentration modulation spectroscopy Population change
ISSN号	1674-0068
DOI	10.1063/1674-0068/cjcp2001010
通讯作者	Deng, Lun-hua(lhdeng@phy.ecnu.edu.cn)
英文摘要	A distributed feedback laser with a wavelength of 2.8 mu m was used to measure the species produced by water vapor glow discharge. Only the absorption spectra of OH radicals and transient H2O molecules were observed using concentration modulation (CM) spectroscopy. The intensities and orientations of the absorption peaks change with the demodulation phase, but the direction of one absorption peak of H2O is always opposite to the other peaks. The different spectral orientations of OH and H2O reflect the increase or the decrease of the number of particles in the energy levels. If more transient species can be detected in the discharge process, the dynamics of excitation, ionization, and decomposition of H2O can be better studied. This study shows that the demodulation phase relationship of CM spectrum can be used to study the population change of molecular energy levels.
资助项目	National Natural Science Foundation of China[61625501] ; National Natural Science Foundation of China[61427816] ; Open Fund of the State Key Laboratory of High Field Laser Physics (SIOM) ; Open Fund of the State Key Laboratory of Precision Spectroscopy
WOS关键词	HYDROXYL RADICALS ; NONTHERMAL PLASMA
WOS研究方向	Physics
语种	英语
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000573915700004
资助机构	National Natural Science Foundation of China ; Open Fund of the State Key Laboratory of High Field Laser Physics (SIOM) ; Open Fund of the State Key Laboratory of Precision Spectroscopy
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104380]
专题	中国科学院合肥物质科学研究院
通讯作者	Deng, Lun-hua
作者单位	1.East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China 2.Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Bao,Wang, Li,Fang, Bo,et al. Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2020,33.
APA	Li, Bao,Wang, Li,Fang, Bo,Zhao, Wei-xiong,Deng, Lun-hua,&Xu, Huai-liang.(2020).Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy.CHINESE JOURNAL OF CHEMICAL PHYSICS,33.
MLA	Li, Bao,et al."Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy".CHINESE JOURNAL OF CHEMICAL PHYSICS 33(2020).