Aerosol profile measurement by a high-spectral-resolution lidar with a scanning interferometer

Yoshitaka Jin, Nobuo Sugimoto, Tomoaki Nishizawa, Hajime Okamoto

研究成果: 会議への寄与タイプ学会誌査読

抄録

A simple high-spectral-resolution lidar (HSRL) is developed for continuous observation of aerosol profile. The second harmonic of an injection-seeding Nd:YAG laser is used for the light source. A scanning interferometer is used to separate the Rayleigh and Mie backscattering components. The interferometer is periodically scanned in the span of one fringe. Lidar signals at the minimum and maximum Mie scattering transmission are obtained. Rayleigh scattering signals are derived by subtracting the bias (cross-talk) component from the lidar signals at the minimum Mie scattering transmission, and the aerosol extinction coefficient is retrieved. The interferometer transmittance and the fringe position are calibrated with the reference signals taken from a portion of the transmitted laser beam. The method is originally developed for an HSRL with a multimode laser, but the measurement sensitivity is higher when using a single-mode laser.

本文言語英語
出版ステータス出版済み - 2018
イベント19th Coherent Laser Radar Conference, CLRC 2018 - Okinawa, 日本
継続期間: 6月 18 20186月 21 2018

その他

その他19th Coherent Laser Radar Conference, CLRC 2018
国/地域日本
CityOkinawa
Period6/18/186/21/18

!!!All Science Journal Classification (ASJC) codes

  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学

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