28 May 2015 Compact 405-nm random-modulation continuous wave lidar for standoff biological warfare detection
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Abstract
A compact bioaerosol standoff system was developed and tested for bio warfare agent stimulant aerosol detection. It used a continuous-wave semiconductor laser diode with an output power of 100 mW and a wavelength of 405 nm. It was modulated with a pseudorandom code at 100 MHz to provide the 1.5 m range resolution for both scattering and fluorescence detection. A 200-mm-diameter Cassegrain telescope and four photon-counting detection channels centered at 405 nm (two polarization detection channels), 450 nm, and 530 nm constituted the optical receiver. A field-programmable gate array chip was controlled to generate the laser driver signal and record four synchronized channel signals. Field tests were performed with stimulant aerosols of
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Zijian Yang, Zijian Yang, Chao Li, Chao Li, Ming Yu, Ming Yu, Feng Chen, Feng Chen, Taihu Wu, Taihu Wu, } "Compact 405-nm random-modulation continuous wave lidar for standoff biological warfare detection," Journal of Applied Remote Sensing 9(1), 096042 (28 May 2015). https://doi.org/10.1117/1.JRS.9.096042 . Submission:
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