Journal of Atmospheric and Environmental Optics, Volume. 20, Issue 4, 461(2025)

Detection of nitrous oxide based on 7.6 μm quantum cascade laser

ZHOU Yu1, WANG Li1, and ZHA Shenlong2、*
Author Affiliations
  • 1School of Mathematics and Physics, Bengbu University, Bengbu 233030, China
  • 2School of Electronic Engineering and Intelligent Manufacturing, Anqing Normal University, Anqing 246133, China
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    Figures & Tables(8)
    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
    Comparison of N2O and H2O absorption spectra at 20 kPa and 9.6 kPa
    Schematic of N2O sensor system
    The 2f signals of N2O gas at different modulation amplitudes. (a) Signal graph; (b) relationship curve
    Calibration curve of N2O detection sensor
    Signal of N2O with a volume fraction of 1.6 × 10-6. (a) Second harmonic signal; (b) background noise without absorption
    2f signal of N2O in ambient air
    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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    Paper Information

    Category:

    Received: Mar. 15, 2024

    Accepted: --

    Published Online: Sep. 30, 2025

    The Author Email: Shenlong ZHA (zslwinner@163.com)

    DOI:10.3969/j.issn.1673-6141.2025.04.004

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