Three-wavelength measurement of aerosol absorption using a multi-resonator coupled photoacoustic spectrometer

doi:10.1364/OE.412922

	Three-wavelength measurement of aerosol absorption using a multi-resonator coupled photoacoustic spectrometer
	Cao, Yuan 1,2; Liu, Kun 2; Wang, Ruifeng 2; Chen, Weidong 3; Gao, Xiaoming 1,2
刊名	OPTICS EXPRESS
	2021-01-18
卷号	29
ISSN号	1094-4087
DOI	10.1364/OE.412922
通讯作者	Liu, Kun(liukun@aiofm.ac.cn) ; Gao, Xiaoming(xmgao@aiofm.ac.cn)
英文摘要	Aerosol optical absorption measurements are important for the prediction of climate change, as aerosols directly disturb Earth's radiation balance by absorbing or scattering solar radiation. Although photoacoustic spectroscopy is commonly recognized as one of the best candidates to measure the absorption of aerosols, multi-wavelength measurements of aerosols optical absorption remain challenging. Here, a method based on photoacoustic spectroscopy that can simultaneously measure the aerosol absorption characteristics of three wavelengths (404, 637 and 805 nm) is proposed. In the three-wavelength photoacoustic spectrometer (TW-PAS), a photoacoustic cell with three acoustic resonators operating at different resonant frequencies was designed for offering multi-laser (multi-wavelength) operation simultaneously, and only one microphone was used to measure the acoustic signals of all resonators. The performance of TW-PAS was demonstrated and evaluated by measuring and analyzing the wavelength-dependent absorption coefficients of carbonaceous aerosols, which shows good agreement with previously reported results. The developed TW-PAS exhibits high potential for classifying and quantifying different types of light-absorbing aerosols by analyzing its absorption wavelength dependence characteristics. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
资助项目	National Key Research and Development Program of China[2016YFC0303900] ; National Key Research and Development Program of China[2017YFC0209700] ; National Natural Science Foundation of China[41475023] ; National Natural Science Foundation of China[41575030] ; National Natural Science Foundation of China[41730103]
WOS关键词	OPTICAL-PROPERTIES ; ANGSTROM EXPONENT ; LIGHT-ABSORPTION ; BROWN CARBON ; BLACK CARBON ; SCATTERING ; SPECTRA ; UV ; SPECTROSCOPY ; DEPENDENCE
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000609227300136
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/334002/119883]
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Kun; Gao, Xiaoming
作者单位	1.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 3.Univ Littoral Cote dOpale, Lab Phys Chim Atmosphere, 189A,Av Maurice Schumann, F-59140 Dunkerque, France
推荐引用方式 GB/T 7714	Cao, Yuan,Liu, Kun,Wang, Ruifeng,et al. Three-wavelength measurement of aerosol absorption using a multi-resonator coupled photoacoustic spectrometer[J]. OPTICS EXPRESS,2021,29.
APA	Cao, Yuan,Liu, Kun,Wang, Ruifeng,Chen, Weidong,&Gao, Xiaoming.(2021).Three-wavelength measurement of aerosol absorption using a multi-resonator coupled photoacoustic spectrometer.OPTICS EXPRESS,29.
MLA	Cao, Yuan,et al."Three-wavelength measurement of aerosol absorption using a multi-resonator coupled photoacoustic spectrometer".OPTICS EXPRESS 29(2021).