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Rapid NO/sub 2/ detection by mid-infrared coherent light source based on difference frequency generation that used a fiber laser as pumping source was demonstrated. High resolution spectroscopic measurements of NO/sub 2/ are reported.
Real time NH/sub 3/ detection under H/sub 2/O vapor mixture with mid-IR light source at 3/spl mu/m based on difference frequency generation (DFG) was demonstrated. High spectral resolution measurements of NH/sub 3/ avoiding interference of water are reported.
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