Acetylene detection based on diode laser QEPAS: Combined wavelength and residual amplitude modulation

Keyphrases

• Multi-wavelength 100%
• Diode Laser 100%
• Acetylene Detection 100%
• Quartz-enhanced Photoacoustic Spectroscopy (QEPAS) 100%
• Residual Amplitude Modulation 100%
• Room Temperature 33%
• Gas Concentration 33%
• Modulation Depth 33%
• Pressure-temperature 33%
• 2-parts 33%
• Atmospheric Pressure 33%
• Spectrophone 33%
• Parameter Depth 33%
• Distributed Feedback Laser Diode 33%
• Parts per Million 33%
• Minimum Detectable Limit 33%
• Fiber-coupled 33%
• Equivalent Coefficient 33%
• Noise Equivalent 33%

Physics

• Amplitude Modulation 100%
• Photoacoustic Spectroscopy 100%
• Semiconductor Laser 100%
• Room Temperature 33%
• Atmospheric Pressure 33%

Engineering

• Silicon Dioxide 100%
• Amplitude Modulation 100%
• Optical Fiber Coupling 33%
• Detectable Limit 33%
• Room Temperature 33%
• Atmospheric Pressure 33%