• Acta Photonica Sinica
  • Vol. 47, Issue 4, 401003 (2018)
GAO Fei*, LEI Ning, HUANG Bo, ZHU Qing-song, SHI Dong-chen, WANG Li, WANG Yu-feng, YAN Qing, LIU Jing-jing, and HUA Deng-xin
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  • [in Chinese]
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    DOI: 10.3788/gzxb20184704.0401003 Cite this Article
    GAO Fei, LEI Ning, HUANG Bo, ZHU Qing-song, SHI Dong-chen, WANG Li, WANG Yu-feng, YAN Qing, LIU Jing-jing, HUA Deng-xin. Design of Polychromator and Technical Implementation of Daytime Raman Lidar for Atmospheric Water Vapor Measurement[J]. Acta Photonica Sinica, 2018, 47(4): 401003 Copy Citation Text show less

    Abstract

    In order to achieve the water vapor measurement in day and night time, the quadruple frequency of Nd∶YAG pulsed laser is selected as the transmitter in the construction of solar-blind Raman lidar. Due to the Ozone pollution in the lower atmosphere, besides the detection of the vibrational Raman signals of nitrogen and water vapor, exmaination of the vibrational Raman signal of oxygen is necessary for retrieving the Ozone concentraiton from the ground to the height of interest, which can be used as the solution for correcting the Raman lidar equation. Meanwhile, the high-resolution grating and tunable laser mirrors are selected to construct the grating spectormeter for the separation of the vibrational Raman signals of oxygen, nitrogen and water vapor. The simulation results show that the vibrational Raman siganls of oxygen, nitorgen and water vapor can be extracted finely when the incident angle of the grating spectrometer is set to be 10 deg, and the solar blind Raman lidar can achieve the water vapor measurement up to the height of 2 km.
    GAO Fei, LEI Ning, HUANG Bo, ZHU Qing-song, SHI Dong-chen, WANG Li, WANG Yu-feng, YAN Qing, LIU Jing-jing, HUA Deng-xin. Design of Polychromator and Technical Implementation of Daytime Raman Lidar for Atmospheric Water Vapor Measurement[J]. Acta Photonica Sinica, 2018, 47(4): 401003
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