Abstract
We present a demonstration of flash resonance Raman lidar for leak detection of SO2 gas. An optical parametric oscillator (OPO) with a deep UV tuning range around 217.0 nm corresponding to an electronic absorption band of SO2 gas has been utilized to monitor the 3D leakage of SO2 gas occurring 2 m away and to explore the wavelength dependence of the resonance Raman effect for SO2 gas. We believe this new efficient gas sensing technique provides an attractive alternative to conventional 3D lidar sensing based on the mechanical scan.
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