8 September 1998 Heterodyne measurements of stratospheric ozone using a single sideband tunable CO2 laser
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Proceedings Volume 3380, Laser Radar Technology and Applications III; (1998); doi: 10.1117/12.327214
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States
Abstract
Heterodyne detection of ozone in the stratosphere has been demonstrated using a tunable single sideband CO2 laser as the local oscillator and solar radiation acquired at ground level. Two unblended strong O3 vibrational- rotational transitions at 1047.209 and 1047.225 cm-1 which were offset at 10.66 and 11.12 GHz away from the CO2 carrier 9P20 were observed. High resolution measurements at 5 MHz (0.00017 cm-1) with a signal to noise ratio of 100:1 were obtained. The measured FWHM linewidths for these lines are about approximately equals 65 MHz. Retrieved data indicated magnitude of absorption is consistent with the anticipated integrated O3 column density from the stratospheric region.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kambiz Shahnazi, Lahmer Lynds, "Heterodyne measurements of stratospheric ozone using a single sideband tunable CO2 laser", Proc. SPIE 3380, Laser Radar Technology and Applications III, (8 September 1998); doi: 10.1117/12.327214; https://doi.org/10.1117/12.327214
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KEYWORDS
Carbon dioxide lasers

Ozone

Heterodyning

Absorption

Carbon dioxide

Sensors

Signal to noise ratio

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