Polarized light illuminated scattering characteristics of single airborne particle

doi:10.1016/j.jqsrt.2021.107568

	Polarized light illuminated scattering characteristics of single airborne particle
	Han, Yan 1,2; Ding, Lei 2; Wang, Yingping 2; Zheng, Haiyang 2; Fang, Li 2
刊名	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
	2021-05-01
卷号	266
关键词	Aerosol Particle shape Polarization Light scattering Aerodynamic size T-matrix algorithm
ISSN号	0022-4073
DOI	10.1016/j.jqsrt.2021.107568
通讯作者	Han, Yan(yanhan17@mail.ustc.edu.cn)
英文摘要	We demonstrate a method of classifying aerosol particles with different shapes based on the two separated vertical and horizontal polarized beams spaced by 90-100 mu m. Model 3321 Aerodynamic Particle Sizer Spectrometer (APS3321) was used to set up an experimental apparatus to test aerosol samples of different shapes, such as spherical oleic acid droplets and elongated crystallized riboflavin. The receiver operating characteristic (ROC) curve was applied to analyze the discrimination ability of the difference in light-scattering intensity to samples with different shapes in the different particle size ranges. The results show that under our experimental conditions, for spherical particles and elongated particles, the distribution trend of the P-f parameter defined by ourselves are different in each particle size range, and the difference between the two particles in the smaller particle size range (about less than 1 mu m) seems to be greater than that in the larger one. The relationship between the difference in light-scattering intensity and the elements of the Muller matrix was deduced theoretically. On this basis, the difference in light-scattering intensity of particles with different shapes was calculated by T-matrix. The calculation results show that the method can distinguish spherical and elongated particles well in a certain range of particle sizes (it's approximately 0.3-1.0 mu m in diameter). The good agreement between the experimental results and the theoretical calculations indicate the feasibility of the polarized light illuminated scattering characteristics of single airborne particle combined with aerodynamic size information as a new method for aerosol particle shape rapid discrimination. (C) 2021 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41275132]
WOS研究方向	Optics ; Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000642460800016
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121705]
专题	中国科学院合肥物质科学研究院
通讯作者	Han, Yan
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Han, Yan,Ding, Lei,Wang, Yingping,et al. Polarized light illuminated scattering characteristics of single airborne particle[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,2021,266.
APA	Han, Yan,Ding, Lei,Wang, Yingping,Zheng, Haiyang,&Fang, Li.(2021).Polarized light illuminated scattering characteristics of single airborne particle.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,266.
MLA	Han, Yan,et al."Polarized light illuminated scattering characteristics of single airborne particle".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 266(2021).