The PolySense team has just published a new article on Applied Science reporting on the realization of a quartz-enhanced photoacoustic spectroscopy (QEPAS)-based ethane gas sensor operating in the near-IR and employing a pigtailed laser diode emitting at ~1684 nm as the exciting light source. The minimum ethane concentration detectable using a 100 ms lock-in integration time achieving the T-Shaped QTF was 22 ppm.
The following link provide access to the article.
http://polysense.poliba.it/wp-content/uploads/2020/04/115_applsci-Ethane-2020-1.pdf
