Two-wavelength backscattering lidar for stand off detection of aerosols

Zygmunt Mierczyk; Marek Zygmunt; Andrzej Gawlikowski; Andrzej Gietka; Miroslawa Kaszczuk; Piotr Knysak; Andrzej Mlodzianko; Michal Muzal; Wiesław Piotrowski; Jacek Wojtanowski

doi:10.1117/12.800088

15 October 2008 Two-wavelength backscattering lidar for stand off detection of aerosols

Zygmunt Mierczyk, Marek Zygmunt, Andrzej Gawlikowski, Andrzej Gietka, Miroslawa Kaszczuk, Piotr Knysak, Andrzej Mlodzianko, Michal Muzal, Wiesław Piotrowski, Jacek Wojtanowski

Author Affiliations +

Proceedings Volume 7111, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing IV; 71110R (2008) https://doi.org/10.1117/12.800088
Event: SPIE Remote Sensing, 2008, Cardiff, Wales, United Kingdom

Abstract

Following article presents LIDAR for stand off detection of aerosols which was constructed in Institute of Optoelectronics in Military University of Technology. LIDAR is a DISC type system (DIfferential SCattering) and is based on analysis of backscattering signal for two wavelengths (λ₁ = 1064 nm and λ₂ = 532 nm) - the first and the second harmonic of Nd:YAG laser. Optical receiving system is consisted of aspherical mirror lens, two additional mirrors and a system of interference filters. In detection system of LIDAR a silicon avalanche photodiode and two different amplifiers were used. Whole system is mounted on a specialized platform designed for possibility of LIDAR scanning movements. LIDAR is computer controlled. The compiled software enables regulation of the scanning platform work, gain control, and control of data processing and acquisition system. In the article main functional elements of LIDAR are shown and typical parameters of system work and construction are presented. One presented also first results of research with use of LIDAR. The aim of research was to detect and characterize scattering aerosol, both natural and anthropogenic one. For analyses of natural aerosols, cumulus cloud was used. For analyses of anthropogenic aerosols one used three various pyrotechnic mixtures (DM11, M2, M16) which generate smoke of different parameters. All scattering centers were firstly well described and theoretical analyses were conducted. Results of LIDAR research were compared with theoretical analyses and general conclusions concerning correctness of LIDAR work and its application were drawn.

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Zygmunt Mierczyk, Marek Zygmunt, Andrzej Gawlikowski, Andrzej Gietka, Miroslawa Kaszczuk, Piotr Knysak, Andrzej Mlodzianko, Michal Muzal, Wiesław Piotrowski, and Jacek Wojtanowski "Two-wavelength backscattering lidar for stand off detection of aerosols", Proc. SPIE 7111, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing IV, 71110R (15 October 2008); https://doi.org/10.1117/12.800088

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