[Second-harmonic detection with tunable diode laser absorption spectroscopy of CO and CO2 at 1.58 microm].
Tunable diode laser absorption spectroscopy has been applied in the fields of atmospheric chemistry and monitoring pollutant gases as a new method of measuring trace gases. The technique of remote sensing of CO and CO2 at 760 mm Hg pressure with tunable diode laser absorption spectroscopy in the near-infrared region is introduced. And the relationship between the second-harmonic spectrum of CO2 in Lorentzian line shape and the modulation amplitude is also presented.
Tu
Xing-Hua
XH
Key Laboratory of Environmental Optics and Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Hefei 230031, China.
Liu
Wen-Qing
WQ
Zhang
Yu-Jun
YJ
Dong
Feng-Zhong
FZ
Wang
Min
M
Wang
Tie-Dong
TD
Wang
Xiao-Mei
XM
Liu
Jian-Guo
JG