The PolySense team has just published  a new article on Photoacoustics Journal Elsevier (IF 5.87)  reporting on a comparison between Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) and Photothermal Spectroscopy (PTS). Compact QEPAS and PTS detection modules were realized and integrated in a gas sensor system for detection of carbon monoxide (CO). Performance was compared and ultimate detection limits Leggi di piùNew Publication on Photoacoustics Journal[…]

The PolySense team has just published  a new article on Journal of Lightwave Technology (IF 4.288)  reporting on a new modelling of QEPAS sensors with the optical components semi-integrated with the tuning fork. The design here proposed paves the way to a further level of miniaturization, integration and deployment of QEPAS sensors for application like mobile and on-drone Leggi di piùNew Publication on Journal of Lightwave Technology[…]

The PolySense team has just published  a new article on Photoacoustics Journal Elsevier (IF 5.87)  reporting on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for hydrogen sulfide (H2S) detection, exploiting a liquid-nitrogen-cooled THz quantum cascade laser (QCL) operating in pulsed mode. A QEPAS record sensitivity for H2S detection in the THz range of 360 part-per-billion in volume Leggi di piùNew Publication on Photoacoustics Journal[…]

Polysense is proud to communicate that four team members have been listed in the Top 2% Scientists list in the world by Stanford University. In particular, Professors Vittorio Passaro and Vincenzo Spagnolo have been listed in the full career Top 2% Scientists list while Professors Vittorio Passaro, Vincenzo Spagnolo, Pietro Patimisco and Angelo Sampaolo are listed in Leggi di piùPolysense Team members listed in the 2019 Top 2% Scientists in the world by Stanford University[…]

The PolySense team has just published  a new article on Photoacoustics Journal Elsevier (IF 5.87)  demonstrating that  quartz-enhanced photoacoustic spectroscopy (QEPAS) is an efficient tool to measure the vibrational relaxation rate of gas species, employing quartz tuning forks (QTFs) as sound detectors. The following link provide access to the article. http://polysense.poliba.it/wp-content/uploads/2020/12/124_Relaxation-rate-_photoacoustics_2020.pdf

The PolySense team has just published a new article on Molecules journal reporting on the realization of an innovative near-IR sensor exploiting a novel fiber-coupled ADM and a custom fiber combiner for sequential detection of methane and ethane in air. A minimum detection limit of 0.76 ppm for methane and 34 ppm for ethane at 100 Leggi di piùNew publication on Molecules[…]

Prof. Vincenzo Spagnolo, Prof. Lei Dong, Prof. Yufei Ma,  Prof. Pietro Patimisco and Prof. Frank K. Tittel are currently accepting submissions for the upcoming Special Issue titled “Photoacoustic spectroscopy for gas sensing: from theoretical modeling to applications”, which will be published in Photoacoustics Journal Elsevier (Impact Factor: 5.870). You can find the Call for Papers at the following link: https://www.journals.elsevier.com/photoacoustics/call-for-papers/photoacoustic-spectroscopy-for-gas-sensing

The PolySense team has just published a new article on Analytical Chemistry journal reporting on the realization of a highly sensitive sensor for detection of carbon monoxide (CO) in sulfur hexafluoride (SF6). A novel custom T-shaped quartz tuning fork (QTF) with grooved prongs operating at 8 kHz has been implemented. A minimum detection limit of Leggi di piùNew publication on Analytical Chemistry Journal[…]

Professor Vincenzo Spagnolo will present a webinar titled New developments in quartz-enhanced photoacoustic sensing real-world applications, for THORLABS Webinar Series. The webinar will take place on September 10th 2020 from 12:00am to 13:00am, Eastern Standard Time (18.00pm to 19.00 pm Italian time). To partecipate to this event is required the registration at the following link: https://www.eventbrite.com/e/utilizing-qepas-for-gas-sensing-applications-tickets-115512251253?aff=ThorlabsWebpage Leggi di piùTHORLABS Webinar Series- “New developments in quartz-enhanced photoacoustic sensing real-world applications”[…]

The PolySense team has just published a new article on Analytical Chemistry journal reporting on a  statistical tool based on partial least squares regression (PLSR) able to retrieve single-component concentrations in a multiple-gas mixture characterized by spectrally overlapping absorption features exploiting QEPAS spectroscopy. The following link provide access to the article. http://polysense.poliba.it/wp-content/uploads/2020/07/121_acs.analchem.PLS_2020.pdf