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Remote Sensing for the Detection of Bio- and Non-Bioaerosols for Defence Applications


Affiliations
1 Laser Science and Technology Centre, Defence Research and Development Organization, Delhi 110 054, India
2 Department of Applied Physics, Delhi Technological University, Delhi 110 042, India
 

The present study describes a novel approach to distinguish between bio- and fluorescing non-bioparticles from a stand-off distance of 5 m using laser-induced fluorescence technique. The variations of peak fluorescence intensities of bio- and non-bioaerosols with time were observed experimentally. Substantial decay of fluorescence peak intensities with time was observed in case of bioparticles, while it was negligible in case of non-bioparticles. This difference in decay of fluorescence peaks with time can form the basis for making a distinction between bio- and fluorescing non-bioparticles from stand-off distance. Further, this approach can be converted to a handy product for defence and security applications.

Keywords

Bio and Non-Bio Agents, Laser Induced Fluorescence, Laser Spectroscopy, UV Radiation Effect.
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  • Remote Sensing for the Detection of Bio- and Non-Bioaerosols for Defence Applications

Abstract Views: 395  |  PDF Views: 137

Authors

Mohit Mann
Laser Science and Technology Centre, Defence Research and Development Organization, Delhi 110 054, India
Subodh Kumar
Laser Science and Technology Centre, Defence Research and Development Organization, Delhi 110 054, India
A. S. Rao
Department of Applied Physics, Delhi Technological University, Delhi 110 042, India
Ramesh C. Sharma
Laser Science and Technology Centre, Defence Research and Development Organization, Delhi 110 054, India

Abstract


The present study describes a novel approach to distinguish between bio- and fluorescing non-bioparticles from a stand-off distance of 5 m using laser-induced fluorescence technique. The variations of peak fluorescence intensities of bio- and non-bioaerosols with time were observed experimentally. Substantial decay of fluorescence peak intensities with time was observed in case of bioparticles, while it was negligible in case of non-bioparticles. This difference in decay of fluorescence peaks with time can form the basis for making a distinction between bio- and fluorescing non-bioparticles from stand-off distance. Further, this approach can be converted to a handy product for defence and security applications.

Keywords


Bio and Non-Bio Agents, Laser Induced Fluorescence, Laser Spectroscopy, UV Radiation Effect.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi12%2F1980-1983