The PolySense team has just published a new article on Optics Express reporting on a the realization o f a Quartz-enhanced photoacoustic sensor for ethylene detection and reaching a record sensitivity value for QEPAS. The following link provide access to the article.
http://polysense.poliba.it/wp-content/uploads/2019/02/103_QEPAS-Ethylene_opex_2019.pdf
The design and realization of two highly sensitive and easily interchangeable spectrophones based on custom quartz tuning forks, with a rectangular (SD or T-shaped (S:)