• Acta Optica Sinica
  • Vol. 40, Issue 12, 1201004 (2020)
Jiangfeng Shao1, Dengxin Hua1, Li Wang1、*, Dong Wang1, and Rui Pan1
Author Affiliations
  • 1School of Mechanical and Precision Instrument Engineering, Xi′an University of Technology, Xi′an, Shaanxi 710048, China
  • 1School of Mechanical and Precision Instrument Engineering, Xian University of Technology, Xian, Shaanxi 710048, China
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    DOI: 10.3788/AOS202040.1201004 Cite this Article Set citation alerts
    Jiangfeng Shao, Dengxin Hua, Li Wang, Dong Wang, Rui Pan. Development of Ultraviolet Dual-Wavelength Lidar and Analysis of Its Signal-to-Noise Ratio[J]. Acta Optica Sinica, 2020, 40(12): 1201004 Copy Citation Text show less
    Schematic diagram of the dual-wavelength lidar
    Fig. 1. Schematic diagram of the dual-wavelength lidar
    Simulation of signal-to-noise ratio
    Fig. 2. Simulation of signal-to-noise ratio
    SNR of the actual detection. (a) During daytime detection; (b) during nighttime detection
    Fig. 3. SNR of the actual detection. (a) During daytime detection; (b) during nighttime detection
    Detection extinction coefficient profile of aerosol on a fine day
    Fig. 4. Detection extinction coefficient profile of aerosol on a fine day
    Detection ozone concentration profile on a fine day
    Fig. 5. Detection ozone concentration profile on a fine day
    Detection results on a fine day. (a) Extinction profiles of aerosols without ozone; (b) Angstrom index; (c) absolute error of extinction coefficient at 266 nm; (d) absolute error of Angstrom index
    Fig. 6. Detection results on a fine day. (a) Extinction profiles of aerosols without ozone; (b) Angstrom index; (c) absolute error of extinction coefficient at 266 nm; (d) absolute error of Angstrom index
    Detection extinction profiles of aerosols on a haze day
    Fig. 7. Detection extinction profiles of aerosols on a haze day
    Detection ozone concentration profile on a haze day
    Fig. 8. Detection ozone concentration profile on a haze day
    Detection results on a haze day. (a) Extinction profiles of aerosols without ozone; (b) Angstrom index; (c) absolute error of extinction coefficient at 266 nm; (d) absolute error of Angstrom index
    Fig. 9. Detection results on a haze day. (a) Extinction profiles of aerosols without ozone; (b) Angstrom index; (c) absolute error of extinction coefficient at 266 nm; (d) absolute error of Angstrom index
    Concentrations of ozone obtained by the Mie lidar compared with weather station
    Fig. 10. Concentrations of ozone obtained by the Mie lidar compared with weather station
    THI of aerosol extinction coefficient from 20:00 CST to 03:00 CST. (a) Aerosol extinction coefficient at 266 nm without ozone absorption coefficient; (b) aerosol extinction coefficient at 355 nm without ozone absorption coefficient
    Fig. 11. THI of aerosol extinction coefficient from 20:00 CST to 03:00 CST. (a) Aerosol extinction coefficient at 266 nm without ozone absorption coefficient; (b) aerosol extinction coefficient at 355 nm without ozone absorption coefficient
    DeviceParameterValue
    LaserTypeNd∶YAG
    Wavelength /nm266/355
    Energy at 266 nm/mJ60
    Energy at 355 nm/mJ120
    Divergence angle /mrad0.5
    Beam splitterReflectivity at 266 nm0.5
    Transmittance at 355 nm0.5
    TelescopeDiameter /mm400
    Field of view /mrad1
    DetectorPMT: Hamamatsu R7056
    Table 1. Configuration of the dual-wavelength lidar system
    Jiangfeng Shao, Dengxin Hua, Li Wang, Dong Wang, Rui Pan. Development of Ultraviolet Dual-Wavelength Lidar and Analysis of Its Signal-to-Noise Ratio[J]. Acta Optica Sinica, 2020, 40(12): 1201004
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