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14 October 2022 Experimental study on polarization transmission characteristics by PM2.5 effection
Huangying Gu, Caixia Wang, Qiang Fu, Xinyu Fan, Su Zhang, Jin Duan
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Proceedings Volume 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022); 123430W (2022) https://doi.org/10.1117/12.2648244
Event: 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 2022, Qingdao, China
Abstract
Understanding the variation of optical properties of polarized light transmitted in haze media is the basis of polarization imaging detection of targets in haze environment. Aiming at the atmospheric environment with different levels of air quality divided by PM2.5 concentration, this paper studied the correlation between air quality factor and optical depth by measuring the change of light intensity before and after transmission of polarized light. Then, a 532nm laser and a polarization state measuring instrument were used to measure the polarization degree after passing through the haze medium. On this basis, the change of polarization degree of polarized light passing through different levels of PM2.5 atmospheric environment is studied. The results show that the polarization degree has the same trend with the increase of optical depth in the air quality grade of good and mild pollution grade.
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Huangying Gu, Caixia Wang, Qiang Fu, Xinyu Fan, Su Zhang, and Jin Duan "Experimental study on polarization transmission characteristics by PM2.5 effection", Proc. SPIE 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 123430W (14 October 2022); https://doi.org/10.1117/12.2648244
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KEYWORDS
Polarization
Pollution
Air contamination
Atmospheric particles
Aerosols
Atmospheric optics
Atmospheric monitoring
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