The PolySense team has just published a new article on Molecules Journal MPDI (IF 4.6) reporting a study aimed at defining the infrared spectral signatures of volatile organic compounds (VOCs) of relevant interest for coffee bean authentication and quality control. Fourier Transform Infrared Spectroscopy was employed to acquire the mid-infrared absorption spectra of some representative Leggi di piùNew Publication on Molecules Journal[…]
The PolySense team has just published a new article on Sensors Journal MPDI (IF 3.5) reporting on an ultra-compact optical gas-sensing system, consisting of a pigtailed laser diode emitting at 1392.5 nm for water vapor (H2O) detection, a silicon nitride (Si3N4) optical waveguide to guide the laser light, and a custom-designed, low-frequency, and T-shaped Quartz Leggi di piùNew Publication on Sensors Journal[…]
The PolySense team has just published a new article on Light: Advanced Manufacturing Journal reporting on the development of a laser surface functionalization process to enhance the optical absorption of quartz crystals, named hereafter Black Quartz, in the 1-5 µm spectral range. Black Quartz consists of surface modification of quartz crystal by ultra-fast-pulsed-laser-processing to create Leggi di piùNew Publication on Light: Advanced Manufacturing[…]
The PolySense team has just published a new review article on Measurement Journal Elsevier (IF 5.2) on a formaldehyde gas detection using optical sensing. In this review, the laser-based spectroscopic techniques for formaldehyde detection were investigated, such as cavity ring-down spectroscopy (CRDS), cavity-enhanced absorption spectroscopy (CEAS), integrated cavity output spectroscopy (ICOS), tunable diode laser absorption Leggi di piùNew Publication on Measurement Journal[…]
The PolySense team has just published a new article on Sensors Journal MPDI (IF 3.4) reporting on a multi-gas sensor for greenhouse detection based on QEPAS. The sensor exploits an innovative, compact three-wavelength laser module as excitation source. The module integrates three interband cascade laser chips with a beam combining system, all enclosed in a Leggi di piùNew Publication on Sensors Journal[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 7.1) reporting on a novel optical synchronized signal demodulation (OSSD) method applied in quartz-enhanced photoacoustic spectroscopy (QEPAS) for remote gas sensing. Using 1 % of the laser source as an optical syn chronization signal, kilometer-scale remote gas detection was achieved, overcoming Leggi di piùNew Publication on Photoacoustics Journal[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 7.1) reporting on a ppb-level sulfur dioxide (SO2) monitoring platform by exploiting standard photoacoustic spectroscopy and a novel, highly stable UV laser. A 266.22 nm LD-pumped solid-state, acousto-optic modulator Q-switched laser. An ultimate detection limit of 3 ppb for SO2 detection in N2 Leggi di piùNew Publication on Photoacoustics Journal[…]
The PolySense team has just published a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 8.0) reporting on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor for ammonia impurities detection in hydrogen. A quantum cascade laser with a central emission wavelength of 9.062 μm was used to excite the NH3 absorption line at 1103.44 cm−1, with Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]
We are proud to share that PolySense and Polysense Innovations team members have once again been recognized in the World Scientists Rankings 2025 by the AD Scientific Index! The AD Scientific Index (Alper-Doger Scientific Index) evaluates researchers based on their scientific performance and the impact of their work, making this achievement particularly meaningful. A huge Leggi di piùPolysense and Polysense Innovations Team members listed in the World Scientists Rankings 2025 by AD Scientific Index[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 7.1) reporting on a novel indium fluoride glass 2-input-1-output fiber combiner, that was designed and fabricated to combine two Interband Cascade Laser (ICL) sources emitting in the mid-infrared wavelength range. To test the combiner performance, a dual-gas quartz-enhanced photoacoustic spectroscopy sensor Leggi di piùNew Publication on Photoacoustics Journal[…]