Baseline-free direct absorption spectroscopy and its application in line intensity measurement of ammonia

doi:10.1016/j.optcom.2022.128848

HFCAS OpenIR

	Baseline-free direct absorption spectroscopy and its application in line intensity measurement of ammonia
	Long, Jiangxiong 1,2; Zhang, Yujun3 ; Shao, Li 1; You, Kun3 ; He, Ying3 ; Ye, Qing 1,2; Sun, Xiaoquan 1,2
	2022-12-15
发表期刊	OPTICS COMMUNICATIONS
ISSN	0030-4018
通讯作者	Zhang, Yujun(yjzhang@aiofm.ac.cn) ; Shao, Li(shaoli-eei@163.com)
摘要	A method based on direct absorption spectroscopy (DAS) without baseline fitting procedure, which we called baseline-free DAS (BFDAS), is proposed. The BFDAS utilizes three transmission spectra at different pressures and a simulated absorbance at the smallest pressure to derive the difference of integral absorbances at the other two pressures, where gas concentration or line intensity can be obtained. The proposed method is experimentally validated by comparing the line intensities of ammonia measured by conventional DAS and BFDAS, which demonstrates good performance of the BFDAS in broadened or narrowly scanned spectra where baseline fitting is difficult to be implemented.
关键词	Direct absorption spectroscopy Baseline-free Line intensity Ammonia
DOI	10.1016/j.optcom.2022.128848
关键词[WOS]	BROADENING COEFFICIENTS ; HIGH-ACCURACY ; ALGORITHM
收录类别	SCI
语种	英语
资助项目	Key Program of the National Natural Science Foundation of China[62033012]
项目资助者	Key Program of the National Natural Science Foundation of China
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000890482000015
出版者	ELSEVIER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/131619
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Yujun; Shao, Li
作者单位	1.Natl Univ Def Technol, State Key Lab Pulsed Power Laser Technol, Hefei 230037, Peoples R China 2.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Natl Engn Res Ctr Air Pollut & Greenhouse Gas Mon, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Long, Jiangxiong,Zhang, Yujun,Shao, Li,et al. Baseline-free direct absorption spectroscopy and its application in line intensity measurement of ammonia[J]. OPTICS COMMUNICATIONS,2022,525.
APA	Long, Jiangxiong.,Zhang, Yujun.,Shao, Li.,You, Kun.,He, Ying.,...&Sun, Xiaoquan.(2022).Baseline-free direct absorption spectroscopy and its application in line intensity measurement of ammonia.OPTICS COMMUNICATIONS,525.
MLA	Long, Jiangxiong,et al."Baseline-free direct absorption spectroscopy and its application in line intensity measurement of ammonia".OPTICS COMMUNICATIONS 525(2022).