Paper
19 December 2008 Raman-elastic-backscatter lidar for observations of tropospheric aerosol
Atanaska D. Deleva, Ivan V. Grigorov, Lachezar A. Avramov, Vladimir A. Mitev, Alexander S. Slesar, Sergey Denisov
Author Affiliations +
Proceedings Volume 7027, 15th International School on Quantum Electronics: Laser Physics and Applications; 70270Y (2008) https://doi.org/10.1117/12.822509
Event: 15th International School on Quantum Electronics: Laser Physics and Applications, 2008, Bourgas, Bulgaria
Abstract
In this work, a combined Raman-elastic backscatter lidar is described. It is based on a Q-switched powerful frequencydoubled Nd:YAG laser (output pulse power: up to 1 J at 1064 nm; up to 100 mJ at 532 nm; pulse duration 15 ns FWHM; repetition rate 2 Hz). A Cassegrain telescope (35 cm diameter, 200 cm focal length) collects backscattered radiation from atmospheric particles and molecules. Lidar's spectral receiving module consists of three cannels. The first two channels separate and detect elastic-backscattered lidar signals at laser wavelengths 1064 nm and 532 nm, respectively. In the third lidar channel, a radiation at a wavelength of 607 nm is selected and detected, resulting from Raman backscattering of laser second harmonic (532 nm) by atmospheric nitrogen molecules. Experimental profiles of the aerosol backscattering coefficient demonstrating measurement abilities of the system are shown and discussed. Particularly, attention is paid to profiles containing signals from high-altitude cirrus clouds, low-altitude stratus clouds, hazy atmospheric areas and Saharan dust over the city of Sofia.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Atanaska D. Deleva, Ivan V. Grigorov, Lachezar A. Avramov, Vladimir A. Mitev, Alexander S. Slesar, and Sergey Denisov "Raman-elastic-backscatter lidar for observations of tropospheric aerosol", Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70270Y (19 December 2008); https://doi.org/10.1117/12.822509
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Cited by 7 scholarly publications.
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KEYWORDS
LIDAR

Aerosols

Atmospheric particles

Raman spectroscopy

Backscatter

Signal detection

Nitrogen

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