Wide dynamic detection range of methane gas based on enhanced cavity absorption spectroscopy

doi:10.1088/1674-1056/ac2484

	Wide dynamic detection range of methane gas based on enhanced cavity absorption spectroscopy
	Wang, Yu 1,2; Ding, Bo-Kun 1,2; Wang, Kun-Yang 1; Mei, Jiao-Xu 1; Han, Ze-Lin 1,3; Tan, Tu 1; Gao, Xiao-Ming 1,2
刊名	CHINESE PHYSICS B
	2022-03-01
卷号	31
关键词	integrated cavity output spectroscopy (ICOS) trace gas wide dynamic detection absorption positions
ISSN号	1674-1056
DOI	10.1088/1674-1056/ac2484
通讯作者	Gao, Xiao-Ming(xmgao@aiofm.ac.cn)
英文摘要	Integrated cavity output spectroscopy (ICOS) is an effective technique in trace gase detection. The strong absorption due to the long optical path of this method makes it challenging in the application scenes that have large gas concentration fluctuation, especially when the gas concentration is high. In this paper, we demonstrate an extension of the dynamic range of ICOS by using a detuned laser combined with an off-axis integrating cavity. With this, we improve the upper limit of the dynamic detection range from 0.1% (1000 ppm) to 20% of the gas concentration. This method provides a way of using ICOS in the applications with unpredictable gas concentrations such as gas leak detection, ocean acidification, carbon sequestration, etc.
资助项目	National Key Research and Development Program of China[2017YFC0209700] ; National Natural Science Foundation of China[41730103]
WOS关键词	OUTPUT SPECTROSCOPY ; WAVELENGTH MODULATION ; SENSOR
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000780051600001
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128635]
专题	中国科学院合肥物质科学研究院
通讯作者	Gao, Xiao-Ming
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Anhui Adv Spect Opt Elect S&T Co Ltd, Hefei, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yu,Ding, Bo-Kun,Wang, Kun-Yang,et al. Wide dynamic detection range of methane gas based on enhanced cavity absorption spectroscopy[J]. CHINESE PHYSICS B,2022,31.
APA	Wang, Yu.,Ding, Bo-Kun.,Wang, Kun-Yang.,Mei, Jiao-Xu.,Han, Ze-Lin.,...&Gao, Xiao-Ming.(2022).Wide dynamic detection range of methane gas based on enhanced cavity absorption spectroscopy.CHINESE PHYSICS B,31.
MLA	Wang, Yu,et al."Wide dynamic detection range of methane gas based on enhanced cavity absorption spectroscopy".CHINESE PHYSICS B 31(2022).