Compact and portable open-path sensor for simultaneous measurements of atmospheric N₂O and CO using a quantum cascade laser

Keyphrases

• Quantum Cascade Laser 100%
• Acetylene 100%
• Simultaneous Measurement 100%
• Open-path Sensor 100%
• Wavelength Modulation Spectroscopy 66%
• Gasses 66%
• Second Harmonic 33%
• Absorption Spectra 33%
• Numerical Model 33%
• Reference Cell 33%
• Multiple Harmonics 33%
• N 2O 33%
• Dual Modulation 33%
• Modulation Amplitude 33%
• Continuous Monitoring 33%
• Lock-in Amplifier 33%
• Fossil Fuel Combustion 33%
• Simultaneous Detection 33%
• Extended Period 33%
• Combustion Sources 33%
• Field Environment 33%
• Greenhouse 33%
• Software-based 33%
• Open Path Detection 33%
• Fourth Harmonic 33%
• Sensor Drift 33%
• Sensor Calibration 33%
• CO Measurement 33%
• Natural Fuels 33%
• Harmonic Absorption 33%
• Harmonic Spectrum 33%

Physics

• Quantum Cascade Lasers 100%
• Atmospherics 100%
• Nitrous Oxide 100%
• Harmonics 40%
• Numerical Model 20%
• Absorption Spectra 20%
• Amplitude Modulation 20%
• Fossil Fuel 20%
• Fuel Combustion 20%
• Greenhouse Gas 20%