Computer Science – Sound
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1222..183h&link_type=abstract
IN: Laser radar V; Proceedings of the Meeting, Los Angeles, CA, Jan. 18, 19, 1990 (A91-24801 09-36). Bellingham, WA, Society of
Computer Science
Sound
Atmospheric Sounding, Frequency Stability, Optical Radar, Water Vapor, Airborne Equipment, Atmospheric Attenuation, Birefringence, Etalons, Monochromators, Yag Lasers
Scientific paper
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.
Browell Edward V.
Grossmann Benoist E.
Higdon Scott N.
Ponsardin Patrick
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