Optical Component-Free Dual-Gas Quartz-Enhanced Photoacoustic Spectroscopy Sensor Based on Highly Integrated Interband Cascade Lasers
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We proposed and demonstrated an optical component-free dual-gas quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor. Two mid-infrared interband cascade lasers (ICLs) emitting at 4.59 μm were employed as the optical sources in the sensor. The two ICLs we... ...
