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Proceedings Paper

Airborne water vapor DIAL system development
Author(s): N. Scott Higdon; Edward V. Browell; Patrick L. Ponsardin; Benoist E. Grossmann
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Paper Abstract

A differential absorption lidar (DIAL) system developed at NASA Langley Research Center for the remote measurement of atmospheric H2O and aerosols from an aircraft is briefly discussed. This DIAL system utilizes a Nd:YAG laser-pumped dye laser as the off-line transmitter and a narrowband, tunable Alexandrite laser as the on-line transmitter. A 1-m monochromator and a multipass absorption cell are used to position the on-line laser to the center of the H2O line. The receiver system has a 14-in. diameter, f/7 Celestron telescope to collect the backscattered laser light and focus in into the detector optics. Return signals are converted to electrical signals by the optical detector and are digitalized and stored on magnetic tape. The results of fligh tests of the system are shown.

Paper Details

Date Published: 1 May 1990
PDF: 3 pages
Proc. SPIE 1222, Laser Radar V, (1 May 1990); doi: 10.1117/12.18384
Show Author Affiliations
N. Scott Higdon, NASA/Langley Research Ctr. (United States)
Edward V. Browell, NASA/Langley Research Ctr. (United States)
Patrick L. Ponsardin, Old Dominion Univ. Research Foundation (United States)
Benoist E. Grossmann, Old Dominion Univ. Research Foundation (United States)

Published in SPIE Proceedings Vol. 1222:
Laser Radar V
Richard J. Becherer, Editor(s)

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