A new differential absorption lidar for NO_2 measurements using Raman-shifted technique

摘要

Based on Raman-shifted wavelengths of D_2 and CH_4 pumped by third harmonic of Nd:YAG laser, a differential absorption lidar was presented in this paper and had been constructed for probing environmental NO_2 concentration. NO_2 experimental measurements were carried out at Anhui Institute of Optics and Pine Mechanics in Hefei. Some NO_2 measurement results were given and discussed.