Application of multidimensional polarization in aerosol source analysis

Jiongying Lv; Jiawei Song; Nan Zeng

doi:10.1117/12.3007810

24 November 2023 Application of multidimensional polarization in aerosol source analysis

Jiongying Lv, Jiawei Song, Nan Zeng

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 129353O (2023) https://doi.org/10.1117/12.3007810
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

The identification of suspended particulate matter has always been an important issue of concern in the field of public health and environmental monitoring. Polarimetry has the advantage of non-invasive, label-free and sensitive to microstructure. The previous work realized the single-particle analysis of atmospheric aerosols based on polarization measurements. While progress has been made in the field of inversion of physical properties of single component aerosols, this paper further focuses on the multi-component mixing problem, and investigate how to apply polarization index system and corresponding data analysis to a wider range of application environments and provide clearer analysis of multi-component aerosol properties. Based on the multi-angle polarization scattering measurement instrument for suspended aerosols, the real-time experimental results of five typical environmental pollutants including motor vehicle exhaust, blind coal, coal, biomass combustion and dust are obtained. The central spectrum and distribution spectrum of 16 polarization indicators at 30°, 60°, 85° and 115° are established firstly. Then, the source identification of the complex component aerosols is solved by nonnegative linear least squares method, and the residual sum of squares is applied to quantitatively describe the accuracy of the source analysis. Compared with the classification method based on the central spectrum of multidimensional polarization index group, the method based on the distribution spectrum presents higher accuracy in source apportionment, which further confirmed the feasibility of realizing a refined aerosol characterization using single particle polarization scattering index and its statistical distribution.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jiongying Lv, Jiawei Song, and Nan Zeng "Application of multidimensional polarization in aerosol source analysis", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 129353O (24 November 2023); https://doi.org/10.1117/12.3007810

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Aerosols

Polarization

Atmospheric particles

Biomass

Combustion

Light scattering

Polarized light

Show All Keywords

Keywords/Phrases

Search In:

Publication Years