The PolySense team has just published a new article on Optics Express demonstrating an ultra-highly sensitive and robust CH4 sensor based on a 3.3 μm interband cascade laser and a low-noise differential photoacoustic (PAS) cell. With an integration time of 90 s, a detection limit of 0.6 ppb was achieved. No additional water or air laser Leggi di piùNew Publication on Optics Express[…]
The PolySense team has just published a new article on Optics Express demonstrating the possibility to use QTFs as photodetectors in a TDLAS sensor, exploiting the light induced thermo-elastic effect occurring when the laser light hits a QTF surface. In the best experimental conditions, QTF as light detector showed an SNR 6.5 times higher than that Leggi di piùNew Publication on Optics Express[…]
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[…]