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

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.