Measurement and analysis on optical characteristics of Aspergillus oryzae spores in infrared band

Le Li; Yihua Hu; Youlin Gu; Wei Chen; Shilong Xu; Xinying Zhao

doi:10.1117/12.2202911

8 October 2015 Measurement and analysis on optical characteristics of Aspergillus oryzae spores in infrared band

Le Li, Yihua Hu, Youlin Gu, Wei Chen, Shilong Xu, Xinying Zhao

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 96772H (2015) https://doi.org/10.1117/12.2202911
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Spore is an important part of bioaerosols. The optical characteristics of spore is a crucial parameter for study on bioaerosols. The reflection within the waveband of 2.5 to15μm were measured by squash method. Based on the measured data, Complex refractive index of Aspergillus oryzae spores within the waveband of 3 to 5μm and 8 to 14 μm were calculated by using Krames-Kronig (K-K) relationship. Then,the mass extinction coefficient of Aspergillus oryzae spores within the waveband of 3 to 5μm and 8 to 14μm were obtained by utilizing Mie scattering theory, and the results were analyzed and discussed. The average mass extinction coefficient of Aspergillus oryzae spores is 0.51 m²/g in the range of 3 to 5μm，and 0.48m²/g in the range of 8 to 14μm. Compared with common inorganic compounds, Aspergillus oryzae spores possesses a good extinction performance in infrared band.

Citation Download Citation

Le Li, Yihua Hu, Youlin Gu, Wei Chen, Shilong Xu, and Xinying Zhao "Measurement and analysis on optical characteristics of Aspergillus oryzae spores in infrared band", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96772H (8 October 2015); https://doi.org/10.1117/12.2202911

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