HFCAS OpenIR
Quasi-Simultaneous Sensitive Detection of Two Gas Species by Cavity-Ringdown Spectroscopy with Two Lasers
Ma, Guosheng1,2; He, Yabai1; Chen, Bing1; Deng, Hao1; Liu, Ying1,2; Wang, Xingping3; Zhao, Zhihao4; Kan, Ruifeng1
2021-11-01
Source PublicationSENSORS
Corresponding AuthorKan, Ruifeng(kanruifeng@aiofm.ac.cn)
AbstractWe developed a cavity ringdown spectrometer by utilizing a step-scanning and dithering method for matching laser wavelengths to optical resonances of an optical cavity. Our approach is capable of working with two and more lasers for quasi-simultaneous measurements of multiple gas species. The developed system was tested with two lasers operating around 1654 nm and 1658 nm for spectral detections of (CH4)-C-12 and its isotope (CH4)-C-13 in air, respectively. The ringdown time of the empty cavity was about 340 mu s. The achieved high detection sensitivity of a noise-equivalent absorption coefficient was 2.8 x 10(-11) cm(-1) Hz(-1/2) or 1 x 10(-11) cm(-1) by averaging for 30 s. The uncertainty of the high precision determination of delta 13CH4 in air is about 1.3 & PTSTHOUSND;. Such a system will be useful for future applications such as environmental monitoring.
Keywordcavity ringdown spectroscopy optical sensing simultaneous detection of multi components methane isotope ratio
DOI10.3390/s21227622
WOS KeywordTUNABLE DIODE-LASER ; DOWN SPECTROSCOPY ; RAPIDLY SWEPT ; ATMOSPHERIC METHANE ; CARBON-DIOXIDE ; CH4 ; CRDS ; CO2 ; SPECTROMETER ; C-13/C-12
Indexed BySCI
Language英语
Funding ProjectNational Program on Key Research and Development Project of China[ZDKYYQ20200006] ; National Natural Science Foundation of China[41901081]
Funding OrganizationNational Program on Key Research and Development Project of China ; National Natural Science Foundation of China
WOS Research AreaChemistry ; Engineering ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000724561700001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/126809
Collection中国科学院合肥物质科学研究院
Corresponding AuthorKan, Ruifeng
Affiliation1.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China
3.Univ Sci & Technol China, Sch Engn Sci, Hefei 230026, Peoples R China
4.Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
Recommended Citation
GB/T 7714
Ma, Guosheng,He, Yabai,Chen, Bing,et al. Quasi-Simultaneous Sensitive Detection of Two Gas Species by Cavity-Ringdown Spectroscopy with Two Lasers[J]. SENSORS,2021,21.
APA Ma, Guosheng.,He, Yabai.,Chen, Bing.,Deng, Hao.,Liu, Ying.,...&Kan, Ruifeng.(2021).Quasi-Simultaneous Sensitive Detection of Two Gas Species by Cavity-Ringdown Spectroscopy with Two Lasers.SENSORS,21.
MLA Ma, Guosheng,et al."Quasi-Simultaneous Sensitive Detection of Two Gas Species by Cavity-Ringdown Spectroscopy with Two Lasers".SENSORS 21(2021).
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