A polarized scanning nephelometer for measurement of light scattering of an ensemble-averaged matrix of aerosol particles

doi:10.1016/j.jqsrt.2020.107497

	A polarized scanning nephelometer for measurement of light scattering of an ensemble-averaged matrix of aerosol particles
	Hu, Qiang 1,2; Qiu, Zhenwei 1; Hong, Jin 1; Chen, Dihu 1
刊名	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
	2021-03-01
卷号	261
关键词	Aerosol particles Scattering matrix Light scattering Stray light Polarimeter
ISSN号	0022-4073
DOI	10.1016/j.jqsrt.2020.107497
通讯作者	Qiu, Zhenwei(zwqiu@aiofm.ac.cn)
英文摘要	A new instrument, the Polarized Scanning Nephelometer (PSN), has been developed for measuring the complete scattering matrix of aerosol particles as a function of the scattering angle. The instrument measures directly the ensemble-averaged scattering matrix elements of the aerosol particles and can deduce all scattering matrix elements for scattering angles in the range 3.5 degrees to 170 degrees at two different wavelengths (445 nm, 633 nm). The PSN instrument features a number of different optical components including beamsplitters, polarizers, and quarter-wave plates. By using different combinations of orientation angles for the optical components, all the scattering matrix elements are obtained as a function of the scattering angles. Nitrogen gas was used to give a measure of the stray light suppression level of the instrument. Instrument performance in terms of the accuracy of the scattering matrices was verified quantitatively using homogeneous polydisperse spherical particles. For instance, in studies comparing the PSN measurements with Mie calculations, the average absolute relative errors of the scattering matrix elements for diethylhexyl sebacate (DEHS) droplets were within 0.02 and 0.025 at 445 nm and 633 nm, respectively. (C) 2021 Elsevier Ltd. All rights reserved.
资助项目	Instrument Developing Project of the Chinese Academy of Sciences[YZ201664] ; Programs for High Technology[CXJJ-16S005]
WOS研究方向	Optics ; Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000642455900001
资助机构	Instrument Developing Project of the Chinese Academy of Sciences ; Programs for High Technology
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121798]
专题	中国科学院合肥物质科学研究院
通讯作者	Qiu, Zhenwei
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Hu, Qiang,Qiu, Zhenwei,Hong, Jin,et al. A polarized scanning nephelometer for measurement of light scattering of an ensemble-averaged matrix of aerosol particles[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,2021,261.
APA	Hu, Qiang,Qiu, Zhenwei,Hong, Jin,&Chen, Dihu.(2021).A polarized scanning nephelometer for measurement of light scattering of an ensemble-averaged matrix of aerosol particles.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,261.
MLA	Hu, Qiang,et al."A polarized scanning nephelometer for measurement of light scattering of an ensemble-averaged matrix of aerosol particles".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 261(2021).