Two-wavelength backscattering lidar for stand off detection of aerosols

Mierczyk, Zygmunt; Zygmunt, Marek; Gawlikowski, A.; Gietka, Andrzej; Kaszczuk, M.; Knysak, P.; Młodzianko, Andrzej; Muzal, M.; Piotrowski, W.; Wojtanowski, J.

doi:10.1117/12.800088

Cited by 4 publications

(2 citation statements)

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“…Lidar is one of the very few promising methods in terms of long-range stand-off airborne biological particles. Initially, lidars were used in atmospheric research [ 128 , 129 ], and over time, this technique was adopted for military applications [ 130 , 131 ]. Scattering lidar is the most basic representative of the family.…”

Section: Stand-off Detection Of Bioaerosolsmentioning

confidence: 99%

Fluorescence Methods for the Detection of Bioaerosols in Their Civil and Military Applications

Kwaśny

Bombalska

Kaliszewski

et al. 2023

Sensors

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The article presents the history of the development and the current state of the apparatus for the detection of interferents and biological warfare simulants in the air with the laser-induced fluorescence (LIF) method. The LIF method is the most sensitive spectroscopic method and also enables the measurement of single particles of biological aerosols and their concentration in the air. The overview covers both the on-site measuring instruments and remote methods. The spectral characteristics of the biological agents, steady-state spectra, excitation–emission matrices, and their fluorescence lifetimes are presented. In addition to the literature, we also present our own detection systems for military applications.

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Section: Stand-off Detection Of Bioaerosolsmentioning

confidence: 99%

Fluorescence Methods for the Detection of Bioaerosols in Their Civil and Military Applications

Kwaśny

Bombalska

Kaliszewski

et al. 2023

Sensors

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“…Unquestionable advantages are continuous, realtime, and stand-off monitoring. Today's FTIR and LIDAR technologies allow stand-off detection of chemical aerosol contaminants (Mierczyk et al [8], Killinger [9]). Creation of biological material database is unavoidable and very important element for development of monitoring systems.…”

Section: Discussionmentioning

confidence: 99%

Application of advanced optical methods for classification of air contaminants

Włodarski¹,

Kopczy²,

ski³

et al. 2009

WIT Transactions on Ecology and the Environment

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Biochemical, highly sensitive methods of pollutant identification have common drawbacks -relatively long analysis time and the necessity of on-site sample collection. Optical methods are less sensitive and less selective, but they allow real time analysis. These optical methods include Fourier Transform Infrared Spectroscopy (FTIR), and Laser Induced Fluorescence (LIF). Both methods give the possibility of stand-off detection. The aim of the presented work is to study the possibilities of detection and classification of air contaminants, based on their optical properties. In this work we present measurement results of UV-VIS fluorescence characteristics and IR optical absorption of vegetable pollens, bacterial spores, and non-biological air contaminants (diesel fuel, dust, syloid). Results of the principal components analysis show that both LIF and FTIR methods allow distinguishing between groups of materials, i.e. pollens and nonbiological materials, thus making application of these methods for detection and preliminary classification possible.

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