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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 9, Iss. 9 — Sep. 10, 2011
  • pp: 092901–

Theoretical studies on bioaerosol particle size and shape measurement from spatial scattering prof iles

Chunxia Feng, Lihua Huang, Jianbo Wang, Yongkai Zhao, and Huijie Huang  »View Author Affiliations

Chinese Optics Letters, Vol. 9, Issue 9, pp. 092901- (2011)

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A method of clarifying bioaerosol particles is proposed based on T-matrix. Size and shape characterizations are simultaneously acquired for individual bioaerosol particles by analyzing the spatial distribution of scattered light. The particle size can be determined according to the scattering intensity, while shape information can be obtained through asymmetry factor (AF). The azimuthal distribution of the scattered light for spherical particles is symmetrical, whereas it is asymmetrical for non-spherical ones, and the asymmetry becomes intense with increasing asphericity. The calculated results denote that the 5o-10o scattering angle is an effective range to classify the bioaerosol particles that we are concerned of. The method is very useful in real-time environmental monitoring of particle sizes and shapes.

© 2011 Chinese Optics Letters

OCIS Codes
(290.1090) Scattering : Aerosol and cloud effects
(290.5850) Scattering : Scattering, particles

Chunxia Feng, Lihua Huang, Jianbo Wang, Yongkai Zhao, and Huijie Huang, "Theoretical studies on bioaerosol particle size and shape measurement from spatial scattering prof iles," Chin. Opt. Lett. 9, 092901- (2011)

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