Journal of Atmospheric and Environmental Optics, Volume. 20, Issue 4, 461(2025)
Detection of nitrous oxide based on 7.6 μm quantum cascade laser
Fig. 1. Simulated absorption lines for N2O, CH4 and H2O at given concentrations with an effective absorption optical path of 100 m and a pressure of 9.6 kPa
Fig. 2. Comparison of N2O and H2O absorption spectra at 20 kPa and 9.6 kPa
Fig. 4. The 2
Fig. 6. Signal of N2O with a volume fraction of 1.6 × 10-6. (a) Second harmonic signal; (b) background noise without absorption
Fig. 8. Continuous measurement of ambient N2O volume fraction for 6 hours
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Yu ZHOU, Li WANG, Shenlong ZHA. Detection of nitrous oxide based on 7.6 μm quantum cascade laser[J]. Journal of Atmospheric and Environmental Optics, 2025, 20(4): 461
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Received: Mar. 15, 2024
Accepted: --
Published Online: Sep. 30, 2025
The Author Email: Shenlong ZHA (zslwinner@163.com)