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 novel signal-denoising framework, termed U-LSTM, is proposed by integrating the symmetric encoder-decoder architecture of a U-shaped neural network (U-Net) with Long Short-Term Memory (LSTM) modules. This hybrid architecture enables the simultaneous Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]

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 custom- grooved QTF with large prong spacing and low resonance frequency designed to effectively suppress background noise, improve the matching between molecular relaxation and acoustic resonance and enhance piezoelectric signal collection Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]

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 hybrid sensing platform that integrates GC with Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) combining the temporal separation capabilities of GC with the high sensitivity and molecular selectivity of mid-infrared laser spectroscopy. This dual-domain Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]

The PolySense and Polysense Innovations teams have just published  a new article on Photoacoustics Journal Elsevier (IF 6.8) reporting on a Quartz-Enhanced Photoacoustic Spectroscopy sensing technique based on single-laser dual-frequency superimposed modulation. By simultaneously injecting two independent high-frequency modulation signals, matching the fundamental and overtone resonance modes of a Quartz Tuning Fork(QTF), into a single Leggi di piùNew Publication on Photoacoustics Journal[…]

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[…]