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

doi:10.1063/1674-0068/cjcp2001010

HFCAS OpenIR

	Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy
	Li, Bao 1; Wang, Li 1; Fang, Bo 2; Zhao, Wei-xiong2 ; Deng, Lun-hua 1; Xu, Huai-liang 1,3
	2020-08-01
发表期刊	CHINESE JOURNAL OF CHEMICAL PHYSICS
ISSN	1674-0068
通讯作者	Deng, Lun-hua(lhdeng@phy.ecnu.edu.cn)
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.
关键词	Glow discharge OH radical Concentration modulation spectroscopy Population change
DOI	10.1063/1674-0068/cjcp2001010
关键词[WOS]	HYDROXYL RADICALS ; NONTHERMAL PLASMA
收录类别	SCI
语种	英语
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
项目资助者	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
WOS研究方向	Physics
WOS类目	Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:000573915700004
出版者	CHINESE PHYSICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/104381
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.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei 230031, Peoples R China 3.Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, 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).