Open AccessStudy on polarization scattering applied in aerosol recognition in the air
Author(s) -
Da Li,
Fei Chen,
Nan Zeng,
Zhigang Qiu,
Honghui He,
Yonghong He,
Hui Ma
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.00a581
Subject(s) - polarization (electrochemistry) , aerosol , scattering , stokes parameters , optics , diffuse sky radiation , histogram , atmospheric optics , remote sensing , physics , computational physics , computer science , meteorology , artificial intelligence , chemistry , geology , image (mathematics)
In this work, we present an in situ online aerosol recognition scheme by synchronized parallel polarization scattering analysis. By theoretical simulations, we select the feasible scattering angles and evaluate the potential of Stokes parameters to identify aerosols. Correspondingly, we develop a measurement system based on multi-angle optical scattering and multidimensional polarization analyzing technique. We construct two index groups based on non-normalized and normalized polarization parameters respectively, and employ their frequency distribution histograms instead of the simple average values to identify and classify different types of aerosols. The experimental verification confirms a future way of a multi-dimensional polarization parameter group applied in a fast and effective air pollutants monitoring.