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Proceedings Paper

Lidar polarization discrimination of bioaerosols
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Paper Abstract

Lidar bioaerosols discrimination based on depolarization signature is studied. The measurements were performed over 25 pollens and 2 dusts under controlled environment at a distance of 100 m, at wavelengths of 355 nm, 532 nm, 1064 nm and 1570 nm, and both linear and circular polarizations were used. It is found that discrimination of bioaerosols using single wavelength linear depolarization ratios is difficult because most of them are quite alike. However, two or more wavelengths measurements make it possible to discriminate different bioaerosols against others, especially when a depolarization ratio cumulative distribution is available.

Paper Details

Date Published: 26 April 2010
PDF: 9 pages
Proc. SPIE 7672, Polarization: Measurement, Analysis, and Remote Sensing IX, 76720P (26 April 2010); doi: 10.1117/12.849649
Show Author Affiliations
Xiaoying Cao, Royal Military College of Canada (Canada)
Gilles Roy, Defence Research and Development Canada (Canada)
Robert Bernier, Les Instruments Optiques du St-Laurent Inc. (Canada)

Published in SPIE Proceedings Vol. 7672:
Polarization: Measurement, Analysis, and Remote Sensing IX
David B. Chenault; Dennis H. Goldstein, Editor(s)

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