Design of an ultraviolet fluorescence lidar for biological aerosol detection

Zhimin Rao; Dengxin Hua; Tingyao He; Jing Le

doi:10.1117/12.2240168

27 September 2016 Design of an ultraviolet fluorescence lidar for biological aerosol detection

Zhimin Rao, Dengxin Hua, Tingyao He, Jing Le

Proceedings Volume 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment; 968416 (2016) https://doi.org/10.1117/12.2240168
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

In order to investigate the biological aerosols in the atmosphere, we have designed an ultraviolet laser induced fluorescence lidar based on the lidar measuring principle. The fluorescence lidar employs a Nd:YAG laser of 266 nm as an excited transmitter, and examines the intensity of the received light at 400 nm for biological aerosol concentration measurements. In this work, we firstly describe the designed configuration and the simulation to estimate the measure range and the system resolution of biological aerosol concentration under certain background radiation. With a relative error of less than 10%, numerical simulations show the system is able to monitor biological aerosols within detected distances of 1.8 km and of 7.3 km in the daytime and nighttime, respectively. Simulated results demonstrate the designed fluorescence lidar is capable to identify a minimum concentration of biological aerosols at 5.0×10^-5 ppb in the daytime and 1.0×10^-7 ppb in the nighttime at the range of 0.1 km. We believe the ultraviolet laser induced fluorescence lidar can be spread in the field of remote sensing of biological aerosols in the atmosphere.

Citation Download Citation

Zhimin Rao, Dengxin Hua, Tingyao He, and Jing Le "Design of an ultraviolet fluorescence lidar for biological aerosol detection", Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 968416 (27 September 2016); https://doi.org/10.1117/12.2240168

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KEYWORDS

Aerosols

LIDAR

Luminescence

Ultraviolet radiation

Atmospheric particles

Laser induced fluorescence

Atmospheric laser remote sensing

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