The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 8.48) reporting on the realization of an intracavity QEPAS sensor for CO, N2O and H2O detection, employing a quartz tuning fork with T-shaped prongs and a QCL operating at 4.59 µm. Exploiting a ~100 optical power amplification enabled by a high finesse cavity, Leggi di piùNew Publication on Photoacoustics Journal[…]
The Polysense team has just published a new article on ACS Omega in collaboration with Saudi Aramco Company reporting on the performance of a compact and portable QEPAS system able to measurr concentrations of methane (C1), ethane (C2), and propane (C3) in gas phase within the percentage range that is typically encountered in natural gas samples from Leggi di piùNew Publication on ACS Omega[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 8.48) reporting on the performance of quartz tuning fork (QTF) based laser spectroscopy sensing employing multiple QTFs. To avoid that resonance frequency mismatching of the QTFs degrades the sensor performance, two types of resonance frequency matching method are here proposed. Without regulation, Leggi di piùNew Publication on Photoacoustics Journal[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 8.48) reporting on the realization of a compact quartz-enhanced photoacoustic sensor for ppb-level ambient NO2 detection exploiting a blue laser diode. A minimum detectable concentration (1σ) of 7.3 ppb with an averaging time of 1 s is achieved, which can be further improved to Leggi di piùNew Publication on Photoacoustics Journal[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 8.48) reporting on the realization of an on-beam quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a custom quartz tuning fork (QTF) with a resonance frequency of 28 kHz, acting as a photoacoustic transducer. H2O, C2H2 and CO2 were detected for a long time and Leggi di piùNew Publication on Photoacoustics Journal[…]
On December 3rd 2021, the United States Consul for the press and culture of the Consulate General of Naples, Karen Schinnerer and her assistants visited the “PolySense” laboratory.
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 8.48) reporting on the realization, calibration, and test outdoor of a 19-inches rack sized QEPAS trace gas sensor designed for real-time carbon monoxide monitoring in ambient air. The sensor was tested outdoor in a trafficked urban area for several hours providing Leggi di piùNew Publication on Photoacoustics Journal[…]
Quartz tuning forks can be cost-effective means of trace gas detection Alane Lim Inexpensive method to detect gas molecules via infrared radiation absorption reported.
The PolySense team has just published a new article on Applied Physics Review journal (Impact Factor 19.162) reporting on the performance of a custom quartz tuning fork used as a sensitive and broadband infrared photodetector for absorption spectroscopy. A spectrally flat responsivity of ~2.2 kV/W in the spectral range 1.65 µm-10.34 µm was demonstrated, corresponding to a Leggi di piùNew Publication on Applied Physics Review[…]
The PolySenSe team is proud to annouce that dr. Andrea Zifarelli has been the recipient of the Sensors MDPI award for the best presentation at the International School of Quantum Electronics, 64th course, Progress in Photoacoustic & Photothermal Phenomena, presenting a talk on “Partial least squares regression as statistical tool for quartz-enhanced photoacoustic spectroscopy to retrieve Leggi di piùSensors MDPI Award won by Dr. Andrea Zifarelli[…]