Journal
APPLIED OPTICS
Volume 61, Issue 13, Pages 3523-3532Publisher
Optica Publishing Group
DOI: 10.1364/AO.451707
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Funding
- Japan Society for the Promotion of Science [JP17H06139, JP18K03745]
- Japan Aerospace Exploration Agency
- Ministry of Education, Culture, Sports, Science and Technology
- Environmental Restoration and Conservation Agency [JPMEERF20205R01]
- Research Institute for Applied Mechanics, Kyushu University
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A simple dual-wavelength high-spectral-resolution lidar was developed for continuous observations of aerosol profiles using a scanning interferometer. The system demonstrated robustness through one month of continuous measurements.
Simple dual-wavelength high-spectral-resolution lidar at 355 and 532 nm with a scanning interferometer was developed for continuous observations of aerosol profiles. Scanning the interferometer periodically over a range of one fringe at 532 nm (1.5 fringes at 355 nm) enabled recording of range-resolved interference signals at these two wavelengths. Reference signals taken from the transmitted laser were used to correct the interference phase shift due to laser frequency variation for every scan. Profiles of aerosol backscatter and extinction coefficients were retrieved from range-resolved interference data. One month of continuous measurements demonstrated the robustness of the system. (C) 2022 Optica Publishing Group
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