A multi-gas sensor for environmental gases: towards miniaturization with mid-infrared Quantum Cascade Lasers (QCL) and silicon integration of photoacoustic cells

Christophe Constancias; Badhise Ben Bakir; Maeva Doron; Olivier Lartigue; Sonia Messaoudène; Adrien Poizat; Sarah Renault; Jules Skubich; Marion Volpert; Olivier Masson; Clément Garaffa; Julien Marianne; Eric Gautier; Séverine Moune; Edouard Régis; Philippe Labazuy

doi:10.1117/12.3016917

20 June 2024 A multi-gas sensor for environmental gases: towards miniaturization with mid-infrared Quantum Cascade Lasers (QCL) and silicon integration of photoacoustic cells

Christophe Constancias, Badhise Ben Bakir, Maeva Doron, Olivier Lartigue, Sonia Messaoudène, Adrien Poizat, Sarah Renault, Jules Skubich, Marion Volpert, Olivier Masson, Clément Garaffa, Julien Marianne, Eric Gautier, Séverine Moune, Edouard Régis, Philippe Labazuy

Author Affiliations +

Proceedings Volume 12999, Optical Sensing and Detection VIII; 129990J (2024) https://doi.org/10.1117/12.3016917
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Atmospheric composition varies both spatially and temporally, notably in terms of relative humidity and greenhouse gases. Current methods rely on massive and expensive sensors deployed sparsely. Here, we are interested in developing a multi-gas sensor that targets very small atmospheric composition variations. In addition, it intends to be gas specific, lightweight, autonomous and compact. Targeted gases are either greenhouse gases such as CO2, CH4 , and N2O, or toxic gases such as CO and SO2. For this purpose, we have developed a Photoacoustic Spectroscopy sensor, using Mid Infrared QCL laser sources, which achieve a very narrow spectral linewidth and have a good potential for miniaturization. We developed a dedicated electronic device to perform data acquisition. Our prototype is beginning its calibration phase in a lab environment, prior further integration for real time measurement.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Christophe Constancias, Badhise Ben Bakir, Maeva Doron, Olivier Lartigue, Sonia Messaoudène, Adrien Poizat, Sarah Renault, Jules Skubich, Marion Volpert, Olivier Masson, Clément Garaffa, Julien Marianne, Eric Gautier, Séverine Moune, Edouard Régis, and Philippe Labazuy "A multi-gas sensor for environmental gases: towards miniaturization with mid-infrared Quantum Cascade Lasers (QCL) and silicon integration of photoacoustic cells", Proc. SPIE 12999, Optical Sensing and Detection VIII, 129990J (20 June 2024); https://doi.org/10.1117/12.3016917

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