Aerosol profile measurement with dual-wavelength high-spectral-resolution lidar using a scanning interferometer

Yoshitaka Jin, Tomoaki Nishizawa, Nobuo Sugimoto, Satoru Takakura, Makoto Aoki, Shoken Ishii, Akihiro Yamazaki, Rei Kudo, Keiya Yumimoto, Kaori Sato, Hajime Okamoto

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)3523-3532
Number of pages10
JournalApplied Optics
Volume61
Issue number13
DOIs
Publication statusPublished - May 1 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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