Latest News

New Publication on Fuel – Elsevier

The PolySense team has just published  a new article on Fuel – Elsevier reporting  on the realization of a shoe-box sized quartz-enhanced photoacoustic spectroscopy system capable of: i) selective detection of methane and ethane in the parts-per-billion range, and propane in the parts-per-million range, by employing a single interband cascade laser ; ii) selective detection Leggi di piùNew Publication on Fuel – Elsevier[…]

New Publication on Applied Science

The PolySense team has just published  a new article on Applied Science reporting  on a study of the front-end electronics for quartz tuning forks (QTFs) employed as optoacoustic transducers in quartz-enhanced photoacoustic spectroscopy (QEPAS) sensing. We demonstrated that the fully di erential voltage amplifier allows for a nearly doubled SNR with respect to the typically used single-ended Leggi di piùNew Publication on Applied Science[…]

New Publication on Applied Science

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 Leggi di piùNew Publication on Applied Science[…]

New Publication on Applied Physics Letters

The PolySense team has just published  a new article on Applied Physics Letters reporting on an optical gas sensing technique based on in-plane quartz-enhanced photoacoustic spectroscopy (IP-QEPAS).  IP-QEPAS sensor results in a signal more than 40 times higher than that measured with the standard in-plane QEPAS configuration, confirming the potentiality of this approach. The following Leggi di piùNew Publication on Applied Physics Letters[…]

New Publication on Photoacoustics Journal

The PolySense team has just published  a new article on Photoacoustics Journal reporting on a comparison between piezoelectric and interferometric readouts of vibrations in quartz tuning forks (QTFs) for quartz-enhanced photoacoustic (QEPAS) trace gas detection. The following link provide access to the article. http://polysense.poliba.it/wp-content/uploads/2020/01/113_Piezo-interferometric-QEPAS_Photoaocustics_2020.pdf 

New Publication on Photoacoustics Journal

The PolySense team has just published  a new article on Photoacoustics Journal reporting on multi-gas QEPAS detection of methane and nitrous oxide using a quantum cascade laser array. A methane detection sensitivity of 200 ppb and 60 ppb for nitrous oxide were achieved with a 10 s lock-in integration time. The following link provide access Leggi di piùNew Publication on Photoacoustics Journal[…]

New Publication on Applied Physics Letters

The PolySense team has just published  a new article on Applied Physics Letters  reporting on a highly sensitive trace gas sensor based on light-induced thermoelastic spectroscopy (LITES) and a custom quartz tuning fork (QTF). A minimum detection limit of 325 ppb was achieved at an integration time of 1 s, nearly one order of magnitude Leggi di piùNew Publication on Applied Physics Letters[…]