This paper proposes a new method for remote biodetection and simulates it with a laboratory optical table experiment. The new method, called circular polarization transmissometry, uses laser light scattered from the ground to measure the circular dichroism in an aerosol plume. In the optical table experiment, a scatter plate simulated the ground, and solutions of camphoroquinone simulated the biological aerosols. The experiment showed that this biodetection method could work even in daylight. Optical elements with inherent birefringence caused an optical artifact background that was subtracted from the signal.
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KarleR., Linear Depolarization Lidar Measurements of Dugway Clouds, Report No. LA-UR-92-1217 (Los Alamos National Laboratories, Los Alamos, New Mexico, 1992).
ElorantaE. W.PiironenP. K., “Adaptation of the University of Wisconsin High Spectral Resolution Lidar for Polarization and Multiple Scattering Measurements,” in Proceedings of the 16th International Laser Radar Conference, NASA Conference Publication 3158 (NASA, Washington, D.C., 1992), p. 353–356.
