In this paper we report, for the first time to our knowledge, on lidar/DIAL detection of acetone vapors at 3.3 ?m by means of an optical parametric tunable laser system. After a preliminary spectroscopic study in an absorption cell, the feasibility of a differential absorption (DIAL) lidar for the detection of acetone vapors has been investigated in the laboratory, simulating the experimental conditions of a field campaign. Having in mind measurements in a real scenario, a study of possible atmospheric intereferents has been performed, looking for all known compounds that share acetone IR absorption in the spectral band selected for its detection. Possible interfering species from urban and industrial atmospheres were investigated and limits of acetone detection in both environments were identified. This study confirmed that a lidar system can detect a low concentration of acetone at considerable distances. ᄅ 2014 Astro Ltd.

Lidar/DIAL detection of acetone at 3.3 ?m by a tunable OPO laser system

Palucci, A.;Pistilli, M.;Puiu, A.;Fiorani, L.;Borelli, R.
2014

Abstract

In this paper we report, for the first time to our knowledge, on lidar/DIAL detection of acetone vapors at 3.3 ?m by means of an optical parametric tunable laser system. After a preliminary spectroscopic study in an absorption cell, the feasibility of a differential absorption (DIAL) lidar for the detection of acetone vapors has been investigated in the laboratory, simulating the experimental conditions of a field campaign. Having in mind measurements in a real scenario, a study of possible atmospheric intereferents has been performed, looking for all known compounds that share acetone IR absorption in the spectral band selected for its detection. Possible interfering species from urban and industrial atmospheres were investigated and limits of acetone detection in both environments were identified. This study confirmed that a lidar system can detect a low concentration of acetone at considerable distances. ᄅ 2014 Astro Ltd.
explosive precursors;remote sensing;homeland security;lidar/DIAL;acetone
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/2552
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