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[…]

The PolySense and Polysense Innovations teams have just published  a new article on Journal of Physics: Photonics, IOPScience (IF 8.4) reporting on the demnstration of femtosecond laser cutting of quartz wafers as an environmentally friendly alternative to the standard etching methods for production of sensitive sensor devices. The proposed approach employed milling channels for processing Leggi di piùNew Publication on Journal of Physics: Photonics[…]

The PolySense and Polysense Innovations teams have just published  a new article on Advanced Materials Technologies journal Wiley (IF 6.92) reporting on the development and experimental validation of a full-domain 3D digital twin for a SSAW device based on 128° YX LiNbO3, commonly used for acoustofluidic applications. The model is developed in COMSOL Multiphysics to Leggi di piùNew Publication on Advanced Material Technologies journal[…]

The PolySense and Polysense Innovations teams have just published  a new article on ACS Sensors Journal (IF 9.1)  reporting on the development of a dual-gas Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) sensor operating in the mid-infrared range for the simultaneous detection of 12CH4 and 13CH4. The sensor employs a frequency-modulated multiplexing scheme using two distributed-feedback quantum cascade lasers to Leggi di piùNew Publication on ACS Sensors journal[…]

The PolySense and Polysense Innovations teams have just published  a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 7.7)  reporting on an investigation of the relaxation dynamics of the ν3 energy level of nitrous oxide (N2O) molecules in synthetic air using a 4.5 μm distributed feedback quantum cascade laser (DFB-QCL) combined with Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]

The PolySense team has just published  a new article on OSA Optics Express (IF 3.3) reporting on a broadband gas sensor based on direct absorption spectroscopy in the mid-infrared range for the simultaneous detection of methane, ethane, and propane in natural gas-like mixtures. The system employs a broadband supercontinuum light source, coupled with an absorption Leggi di piùNew Publication on OSA Optics Express Journal[…]

The PolySense team has just published  a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 7.7)  reporting on a highly sensitive gas sensor based on tunable diode laser absorption spectroscopy (TDLAS) for HF monitoring in GeF₄ matrices. The system employs a distributed feedback diode laser operating at 1.278 μm, targeting the HF Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]