The PolySense and Polysense Innovations teams have just published  a new article on the International Journal of Hydrogen Energy (IF 8.3) regarding the use of Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) for the detection of CO impurities in hydrogen . Due to the high speed of sound in hydrogen, the geometry of the spectrophone was specifically selected Leggi di piùNew Publication on International Journal of Hydrogen Energy[…]

The PolySense and Polysense Innovations teams have just published  a new article on Sensors and Actuators B Chemical Journal (IF 7.7) reporting on a dual-spectral (QEPAS-LITES) multi-gas detection system based on a single customized quartz tuning fork (QTF). By applying second-harmonic (2 f) wavelength modulation at 1368.6 nm and 1653.7 nm, the fundamental and first-overtone resonance modes of Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]

The PolySense and Polysense Innovations teams have just published  a new article on Nature Communications Journal (IF=15.7) reporting on a multi-functional platform (LN-MFP) that seamlessly integrates photoacoustic spectroscopy, light-induced thermoelastic spectroscopy and photodetection into a single on-chip device. The proposed LN-MFP operates over a broad spectral range spanning from the visible to the mid infrared. Leggi di piùNew Publication on Nature Communications[…]

The PolySense and Polysense Innovations teams have just published  a new article on Photoacoustics Journal Elsevier (IF 6.8) reporting on an online breath sensing system based on photoacoustic spectroscopy (PAS), achieving real-time simultaneous monitoring of multiple exhaled gases using PAS. The system exploits the inherent difference in response amplitude between the fundamental and overtone resonances Leggi di piùNew Publication on Photoacoustics Journal[…]

The PolySense and Polysense Innovations teams have just published  a new article on Journal of Breath Research (IOP) reporting on a computational method to identify volatile organic compound (VOC) artifacts introduced by breath sampling hardware. To exclude endogenous biological variability, ambient air was collected using two sampling devices working in the same experimental conditions: the Leggi di piùNew Publication on Journal of Breath Research[…]

The PolySense and Polysense Innovations teams have just published  a new article on Optics & Laser Technology journal (IF 5.0) reporting on a comparison between quartz-enhanced photoacoustic spectroscopy (QEPAS) and beat-frequency QEPAS (BF-QEPAS) techniques for the sequential detection of methane (C1) and ethane (C2) in the near-infrared spectral range. Experiments were performed using a laser Leggi di piùNew Publication on Optics & Laser Technology Journal[…]

The PolySense and Polysense Innovations teams have just published  a new article on ACS Sensors Journal (IF 9.1)  reporting on a compact differential photoacoustic gas sensor for end-tidal carbon dioxide (ETCO2) and end-tidal oxygen (ETO2) monitoring. The sensor employs a dual-resonator photoacoustic cell with resonant frequencies of 4110 and 13,115 Hz for selective ETCO2 and Leggi di piùNew Publication on ACS Sensors journal[…]