Saturated fluorescence spectroscopy measurement apparatus based on metastable Li+ beam with low energy

doi:10.1063/1.5088187

	Saturated fluorescence spectroscopy measurement apparatus based on metastable Li+ beam with low energy
	Chen, Shaolong 1,3,4; Liang, Shiyong 1,3,4; Sun, Wei 1,3; Huang, Yao 1,3; Guan, Hua 1,3; Gao, Kelin 1,2,3
刊名	REVIEW OF SCIENTIFIC INSTRUMENTS
	2019-04-01
卷号	90 期号:4 页码:9
ISSN号	0034-6748
DOI	10.1063/1.5088187
英文摘要	The apparatus for fluorescence spectroscopy measurement is developed to determine the fine structure (FS)/hyperfine structure (HFS) splittings of 1s2p P-3(J)(J = 0, 1, 2) states of Li+. The instrument is composed of a low energy Li+ ion source and a saturated fluorescence spectroscopic probing system. A low energy Li+ ion source, containing 1.8(7)% of 1s2s S-3(1) metastable ions with an energy of similar to 500 eV, is obtained by an electron bombardment process. The ion current can stay more than 250 h with the variation of similar to 0.3%, and the divergence of ion beam is similar to 0.5 mrad. The symmetric profile of Lamb dip signals of 1s2s S-3(1)-1s2p P-3(J) transitions with linewidths of similar to 50 MHz are obtained after subtracting Doppler background from the saturated fluorescence signals. A back-and-forth scan method is adopted to determine the FS/HFS splittings of 1s2p P-3(J) states. Under these conditions, as a preliminary test, several splittings of Li-7(+) are measured. The statistical uncertainties of the FS/HFS splittings are estimated to be less than 50 kHz, and the results are one order of magnitude better than previous results. The apparatus is feasible to precisely determine the splittings of energy levels of alkali and alkaline earth ions. Published under license by AIP Publishing.
资助项目	Scientific Instrument Developing Project of the Chinese Academy of Sciences[YZ201552] ; National Natural Science Foundation of China[11622434] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB21010400] ; CAS Youth Innovation Promotion Association[2015274] ; Hubei province Science Fund for Distinguished Young Scholars[2017CFA040]
WOS关键词	LASER-MICROWAVE SPECTROSCOPY ; FINE-STRUCTURE SPLITTINGS ; HYPERFINE-STRUCTURE ; HELIUM ; TRANSITION ; SPECTRUM ; LI-6(+)
WOS研究方向	Instruments & Instrumentation ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000466709400012
资助机构	Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS Youth Innovation Promotion Association ; CAS Youth Innovation Promotion Association ; Hubei province Science Fund for Distinguished Young Scholars ; Hubei province Science Fund for Distinguished Young Scholars ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS Youth Innovation Promotion Association ; CAS Youth Innovation Promotion Association ; Hubei province Science Fund for Distinguished Young Scholars ; Hubei province Science Fund for Distinguished Young Scholars ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS Youth Innovation Promotion Association ; CAS Youth Innovation Promotion Association ; Hubei province Science Fund for Distinguished Young Scholars ; Hubei province Science Fund for Distinguished Young Scholars ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS Youth Innovation Promotion Association ; CAS Youth Innovation Promotion Association ; Hubei province Science Fund for Distinguished Young Scholars ; Hubei province Science Fund for Distinguished Young Scholars
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/14519]
专题	中国科学院武汉物理与数学研究所
通讯作者	Guan, Hua; Gao, Kelin
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, Key Lab Atom Frequency Stand, Wuhan 430071, Hubei, Peoples R China 2.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Hubei, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shaolong,Liang, Shiyong,Sun, Wei,et al. Saturated fluorescence spectroscopy measurement apparatus based on metastable Li+ beam with low energy[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2019,90(4):9.
APA	Chen, Shaolong,Liang, Shiyong,Sun, Wei,Huang, Yao,Guan, Hua,&Gao, Kelin.(2019).Saturated fluorescence spectroscopy measurement apparatus based on metastable Li+ beam with low energy.REVIEW OF SCIENTIFIC INSTRUMENTS,90(4),9.
MLA	Chen, Shaolong,et al."Saturated fluorescence spectroscopy measurement apparatus based on metastable Li+ beam with low energy".REVIEW OF SCIENTIFIC INSTRUMENTS 90.4(2019):9.