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Multiwavelength micropulse lidar for atmospheric aerosol investigation

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Author(s): Michal Posyniak | Tadeusz Stacewicz | Maciej Miernecki | Anna K. Jagodnicka | Szymon P. Malinowski

Journal: Optica Applicata
ISSN 0078-5466

Volume: 40;
Issue: 3;
Start page: 623;
Date: 2010;
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Keywords: micropulse lidar | atmospheric aerosol | optical teledetection

ABSTRACT
Multiwavelength micropulse lidar (MML) designed for continuous atmospheric sounding is presented. In its optical emitter, a diode pumped pulsed Nd:YAG laser is used. The laser generates three wavelengths: 1064, 532 and 355 nm. Energies of light pulses are about 30, 15 and 7 μJ, respectively, while their repetition rate is 2 kHz. Returning light is collected by a Cassegrain telescope with the mirror of 170 mm in diameter. Then, the signal is spectrally separated by a polichromator built with dielectric interference and colour filters. Detection of the signals is performed with three photomultipliers and a multiscaling photon counter. Preliminary results of investigation of aerosol properties during COAST 2009 experiment on the Baltic Sea are presented.
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