Fourier-transform lidar

Fourier-transform lidar

We propose a new method based on the differential absorption lidar technique for multipollutant detection. A broadband laser is sent into the atmosphere in a wavelength range in which several pollutants absorb. The backscattered light is analyzed by a Fourier-transform spectrometer with time resolut...

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Veröffentlicht in:Optics letters 1995-10, Vol.20 (20), p.2140-2142
Hauptverfasser: Douard, M, Bacis, R, Rambaldi, P, Ross, A, Wolf, J P, Fabre, G, Stringat, R
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container_end_page 2142
container_issue 20
container_start_page 2140
container_title Optics letters
container_volume 20
creator Douard, M
Bacis, R
Rambaldi, P
Ross, A
Wolf, J P
Fabre, G
Stringat, R
description We propose a new method based on the differential absorption lidar technique for multipollutant detection. A broadband laser is sent into the atmosphere in a wavelength range in which several pollutants absorb. The backscattered light is analyzed by a Fourier-transform spectrometer with time resolution. This mode of detection provides both spatial and high spectral resolution down to 0.01 cm(-1), allowing range-resolved measurements of several pollutants simultaneously. To demonstrate the feasibility of this method, we have measured water vapor concentration by using more than 10 individual lines in the 720-nm absorption band. The potential and the limitations are discussed critically.
doi_str_mv 10.1364/OL.20.002140
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title Fourier-transform lidar
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