Planar Laser-Based QEPAS Trace Gas Sensor
AbstractA novel quartz enhanced photoacoustic spectroscopy (QEPAS) trace gas detection scheme is reported in this paper. A cylindrical lens was employed for near-infrared laser focusing. The laser beam was shaped as a planar line laser between the gap of the quartz tuning fork (QTF) prongs. Compared with a spherical lens-based QEPAS sensor, the cylindrical lens-based QEPAS sensor has the advantages of easier laser beam alignment and a reduction of stringent stability requirements. Therefore, the reported approach is useful in long-term and continuous sensor operation. View Full-Text
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Ma, Y.; He, Y.; Chen, C.; Yu, X.; Zhang, J.; Peng, J.; Sun, R.; Tittel, F.K. Planar Laser-Based QEPAS Trace Gas Sensor. Sensors 2016, 16, 989.
Ma Y, He Y, Chen C, Yu X, Zhang J, Peng J, Sun R, Tittel FK. Planar Laser-Based QEPAS Trace Gas Sensor. Sensors. 2016; 16(7):989.Chicago/Turabian Style
Ma, Yufei; He, Ying; Chen, Cheng; Yu, Xin; Zhang, Jingbo; Peng, Jiangbo; Sun, Rui; Tittel, Frank K. 2016. "Planar Laser-Based QEPAS Trace Gas Sensor." Sensors 16, no. 7: 989.
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