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18 July 2024 Analysis of optical properties of artificially prepared microbial spores in full optical band
Xi Chen, Yihua Hu, Youlin Gu, Xinyu Wang, Peng Wang
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Proceedings Volume 13179, International Conference on Optics and Machine Vision (ICOMV 2024); 1317902 (2024) https://doi.org/10.1117/12.3031767
Event: International Conference on Optics and Machine Vision (ICOMV 2024), 2024, Nanchang, China
Abstract
Artificially prepared microbial spores have special core-shell structure and excellent physicochemical properties, which can attenuate electromagnetic waves by the way of absorption and scattering. The application of bioaerosol in the field of light extinction has the advantages of safety and environmental protection. In this study, We selected three laboratoryprepared microbial spores and the reflectance spectra of the microbial spore compression tablets in the wavebands of 0.25-2.4μm and 3-12μm were measured. By utilizing the Krames-Kronig(K-K) algorithm and the Mie scattering theory, two important optical parameters namely complex refractive index(CRI) and mass extinction coefficient of microbial spores were calculated and analyzed, then we measured the transmittance of bioaerosols under dynamic conditions from ultraviolet to far-infrared wavebands and the mass extinction coefficients of the bioaerosols in full optical band were obtained. The results showed that the optical properties of different microbial spores in specific optical wavebands had significant variability. This study can help to comprehensively understand and quantitatively study the general and specific optical properties of microbial spores and provide new ideas for the research of novel extinction materials.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Xi Chen, Yihua Hu, Youlin Gu, Xinyu Wang, and Peng Wang "Analysis of optical properties of artificially prepared microbial spores in full optical band", Proc. SPIE 13179, International Conference on Optics and Machine Vision (ICOMV 2024), 1317902 (18 July 2024); https://doi.org/10.1117/12.3031767
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KEYWORDS
Mass attenuation coefficient
Optical properties
Reflectivity
Transmittance
Refractive index
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