Explanipedia

Breath Isoprene Sensor Based on Quartz-Enhanced Photoacoustic Spectroscopy Open

Fadia Abou Abou Naoum, Diba Ayache, Tarek Seoudi, D. A. Díaz-Thomas, А. Н. Баранов , et al. · 2025

Isoprene, the most abundant endogenous hydrocarbon in human breath, is a promising biomarker for metabolic and cardiovascular diseases. In this paper, we present the detection of isoprene in exhaled breath using the off-beam Quartz-Enhance…

Single mode, distributed feedback interband cascade lasers grown on Si for gas sensing Open

D. A. Díaz-Thomas, Diba Ayache, Maëva Fagot, Zeineb Loghmari, Audrey Gilbert , et al. · 2025

A single mode distributed feedback (DFB) interband cascade laser (ICL) grown on a (001) Si substrate has been developed. The designed DFB ICL with a grating on top of the ridge emits at a wavelength near 3.4 μm, suited for methane gas sens…

Journées Nano, Micro et Optoélectronique (JNMO) Open

Jean-Philippe Pérez, F. González‐Posada, A. Vicet, L. Cerutti, E. Tournié , et al. · 2024

National audience

MEMS capacitifs à haute sensibilité pour la détection photoacoustique des gaz Open

Tarek Seoudi, Julien Charensol, Fanny Pagès, Diba Ayache, Eric Rosenkrantz , et al. · 2024

International audience

Breath analysis by quartz enhanced photoacoustic spectroscopy: A clinical study Open

Tarek Seoudi, D. Ayache, Oifa Benabbad, Fanny Pagès, Julien Charensol , et al. · 2024

International audience

Photoacoustic sensing based on resonant mechanical transducers: application to diagnosis in breath Open

Tarek Seoudi, Diba Ayache, Oifa Benabbad, Julien Charensol, Fanny Pagès , et al. · 2024

International audience

Highly selective and sensitive detection of volatile organic compounds using long wavelength InAs-based quantum cascade lasers through quartz-enhanced photoacoustic spectroscopy Open

Kumar Kinjalk, Francesco Paciolla, Bo Sun, Andrea Zifarelli, Giansergio Menduni , et al. · 2024

The precise detection of volatile organic compounds plays a pivotal role in addressing environmental concerns, industrial safety, and medical diagnostics. The accurate identification and quantification of these compounds because of their u…

Single mode distributed feedback interband cascade lasers grown on Si substrate Open

Daniel Andrés Díaz Thomas, Maëva Fagot, Gad Ndemengoye-Kombila, Audrey Gilbert, Diba Ayache , et al. · 2024

International audience

Breath Isoprene Sensor Based on Quartz Enhanced Photoacoustic Spectroscopy Using an 11 Μm Quantum Cascade Laser Open

Diba Ayache, Tarek Seoudi, Meriem Sebbata, Oifa Benabbad, Daniel Andrés Díaz Thomas , et al. · 2024

Highly Sensitive Capacitive MEMS for Photoacoustic Gas Trace Detection Open

Tarek Seoudi, Julien Charensol, Wioletta Trzpil, Fanny Pagès, Diba Ayache , et al. · 2023

An enhanced MEMS capacitive sensor is developed for photoacoustic gas detection. This work attempts to address the lack of the literature regarding integrated and compact silicon-based photoacoustic gas sensors. The proposed mechanical res…

Commercial and Custom Quartz Tuning Forks for Quartz Enhanced Photoacoustic Spectroscopy: Stability under Humidity Variation Open

Diba Ayache, Roman Rousseau, Elena Kniazeva, Julien Charensol, Tarek Seoudi , et al. · 2023

This work investigates the behavior of commercial and custom Quartz tuning forkss (QTF) under humidity variations. The QTFs were placed inside a humidity chamber and the parameters were studied with a setup to record the resonance frequenc…

Benzene sensing by Quartz Enhanced Photoacoustic Spectroscopy at 14.85 µm Open

Diba Ayache, Wioletta Trzpil, Roman Rousseau, Kumar Kinjalk, R. Teissier , et al. · 2022

Benzene is a gas known to be highly pollutant for the environment, for the water and cancerogenic for humans. In this paper, we present a sensor based on Quartz Enhanced Photoacoustic Spectroscopy dedicated to benzene analysis. Exploiting …

A silicon micromechanical resonator with capacitive transduction for enhanced photoacoustic spectroscopy Open

Wioletta Trzpil, Julien Charensol, Diba Ayache, Nicolas Maurin, Roman Rousseau , et al. · 2021

Breath acetone concentration: too heterogeneous to constitute a diagnosis or prognosis biomarker in heart failure? A systematic review and meta-analysis Open

Farès Gouzi, Diba Ayache, Christophe Hédon, Nicolas Molinari, A. Vicet · 2021

Introduction . Exhaled breath acetone (ExA) has been investigated as a biomarker for heart failure (HF). Yet, barriers to its use in the clinical field have not been identified. The aim of this systematic review and meta-analysis was to as…

Passive Electrical Damping of a Quartz Tuning Fork as a Path to Fast Resonance Tracking in QEPAS Open

Roman Rousseau, Diba Ayache, Wioletta Trzpil, M. Bahriz, A. Vicet · 2021

In Quartz-Enhanced PhotoAcoustic Spectroscopy (QEPAS) gas sensors, the acoustic wave is detected by the piezoelectric Quartz Tuning Fork (QTF). Due to its high-quality factor, the QTF can detect very low-pressure variations, but its resona…

Monolithic Double Resonator for Quartz Enhanced Photoacoustic Spectroscopy Open

Roman Rousseau, Diba Ayache, Nicolas Maurin, Wioletta Trzpil, M. Bahriz , et al. · 2021

A new approach for Quartz Enhanced Photoacoustic Spectroscopy is presented, based on an acoustic excitation from the outside of the prongs of a quartz tuning fork, to increase the sensitivity of the sensor. For this purpose, we introduce a…

Analytic Optimization of Cantilevers for Photoacoustic Gas Sensor with Capacitive Transduction Open

Wioletta Trzpil, Nicolas Maurin, Roman Rousseau, Diba Ayache, A. Vicet , et al. · 2021

We propose a new concept of photoacoustic gas sensing based on capacitive transduction which allows full integration while conserving the required characteristics of the sensor. For the sensor’s performance optimization, trial and error me…

First clinical evaluation of a quartz enhanced photo-acoustic CO sensor for human breath analysis Open

Nicolas Maurin, Roman Rousseau, Wioletta Trzpil, Guillaume Aoust, Maurice Hayot , et al. · 2020

State-of-the-art Laser Gas Sensing Technologies Open

Yufei Ma, A. Vicet, Karol Krzempek · 2020

Trace gas sensing technologies are widely used in many applications, such as environmental monitoring, life science, medical diagnostics, and planetary exploration. On the one hand, laser sources have developed greatly due to the rapid dev…

State-of-the-Art Laser Gas Sensing Technologies Open

Yufei Ma, A. Vicet, Karol Krzempek · 2020

The increasing desire to detect and monitor in different fields [...]

Quartz Tuning Fork Resonance Tracking and application in Quartz Enhanced Photoacoustics Spectroscopy Open

Roman Rousseau, Nicolas Maurin, Wioletta Trzpil, M. Bahriz, A. Vicet · 2019

The quartz tuning fork (QTF) is a piezoelectric transducer with a high quality factor that was successfully employed in sensitive applications such as atomic force microscopy or Quartz-Enhanced Photo-Acoustic Spectroscopy (QEPAS). The vari…

Off-beam QEPAS sensor using an 11-μm DFB-QCL with an optimized acoustic resonator Open

Roman Rousseau, Zeineb Loghmari, M. Bahriz, Kaïm Chamassi, R. Teissier , et al. · 2019

An off-beam quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor was designed for ethylene detection using a distributed-feedback quantum cascade laser (QCL) operating in the mid-infrared around 11 μm. The acoustic microresonator conf…

Electrically pumped all photonic crystal 2<i>nd</i> order DFB lasers arrays emitting at 2.3 <i>μ</i>m Open

Brice Adelin, Olivier Gauthier‐Lafaye, P. Dubreuil, Aurélie Lecestre, Y. Rouillard , et al. · 2017

Single-mode, widely tunable laser diodes in the mid-infrared range are highly interesting for demanding spectroscopic applications involving multi-species discrimination. We report on an alternative approach using single frequency laser ar…

Distributed feedback GaSb based laser diodes with buried grating: a new field of single-frequency sources from 2 to 3 µm for gas sensing applications Open

Quentin Gaimard, Meriam Triki, Tong Nguyen-Ba, L. Cerutti, G. Boissier , et al. · 2015

We report on the growth, fabrication, experimental study and application in an absorption gas setup of distributed feed-back antimonide diode lasers with buried grating. First, half laser structures were grown by molecular beam epitaxy on …

Temperature dependence of air- and N2-broadening coefficients in the v3 band of 13CH4 Open

Hongliang Man, Su Ming-Guo, A.-W. Liu, A. Vicet, Weidong Chen , et al. · 2015

By using a mid-infrared tunable diode laser and a home-made cooling cell, the N2- and air-broadening coefficients of 13CH4 have been measured at room and low temperatures around 3.38 μm. Four transitions are studied for the 13CH4 diluted w…

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