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 day-light. Optical elements with inherent birefringence caused an optical artifact background
that was subtracted from the signal.
U.S. Army Research Laboratory, Battlefield Environment Directorate, Attn: AMSRL-BE-W, WSMR, New Mexico 88002-5501
Publication date: November 1, 1993
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