A Fourier-domain-based line shape recovery method used in direct absorption spectroscopy

doi:10.1016/j.saa.2022.121153

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	A Fourier-domain-based line shape recovery method used in direct absorption spectroscopy
	R. Liang; F. P. Wang; Q. S. Xue; Q. Wang; J. H. Wu; Y. P. Cheng and Q. Li
	2022
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	275 页码:8
摘要	A novel absorption line shape recovery method with self-calibration function and ultra-easy implementation was introduced to direct absorption spectroscopy (DAS) in this study. The self-calibration function empowered the DAS system with the immunity to the laser power fluctuations. The ultra-easy implementation was achieved in that the DAS system was substantially simplified with a single-path DAS rather than the traditional dual-path differential optical absorption spectroscopy (DOAS), and the absorption profile can be directly recovered by an analog or digital filter instead of complex fitting algorithm or sophisticated balance detection circuits. The reliability and self-calibration characteristic of the new method were validated using CH4 transition at 1653.72 nm, where the line strength is 1.45 x 10(-21) cm/molec. The Voigt fitting residual and signal to noise ratio were optimized in detail and compared with the DOAS. (C) 2022 Elsevier B.V. All rights reserved.
DOI	10.1016/j.saa.2022.121153
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66681
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	R. Liang,F. P. Wang,Q. S. Xue,et al. A Fourier-domain-based line shape recovery method used in direct absorption spectroscopy[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2022,275:8.
APA	R. Liang,F. P. Wang,Q. S. Xue,Q. Wang,J. H. Wu,&Y. P. Cheng and Q. Li.(2022).A Fourier-domain-based line shape recovery method used in direct absorption spectroscopy.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,275,8.
MLA	R. Liang,et al."A Fourier-domain-based line shape recovery method used in direct absorption spectroscopy".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 275(2022):8.

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