Quartz-enhanced photoacoustic spectroscopy employing a Vernier-effect distributed feedback-quantum cascade laser for multiple analytes detection

Andrea Zifarelli; Raffaele De Palo; Pietro Patimisco; Marilena Giglio; Angelo Sampaolo; Stéphane Blaser; Tobias Gresch; Olivier Landry; Antoine Müller; Vincenzo Spagnolo

doi:10.1117/12.2607866

3 March 2022 Quartz-enhanced photoacoustic spectroscopy employing a Vernier-effect distributed feedback-quantum cascade laser for multiple analytes detection

Andrea Zifarelli, Raffaele De Palo, Pietro Patimisco, Marilena Giglio, Angelo Sampaolo, Stéphane Blaser, Tobias Gresch, Olivier Landry, Antoine Müller, Vincenzo Spagnolo

Author Affiliations +

Proceedings Volume 12021, Novel In-Plane Semiconductor Lasers XXI; 120210E (2022) https://doi.org/10.1117/12.2607866
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Here we report on the multi-gas detection of carbon monoxide (CO), nitrous oxide (N₂O), carbon dioxide (CO₂), and water vapor (H₂O) by using a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor exploiting a Vernier effect-based quantum cascade laser as excitation source. The device emission wavelengths ranged from 2100 cm^-1 to 2250 cm^-1. The achieved minimum detection limits were 6 ppb, 7 ppb, and 71 ppm fr CO, N₂O, and CO₂, respectively, at 100 ms of integration time. Finally, QEPAS sensor performances were tested retrieving the concentrations of the target gases within laboratory air.

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Andrea Zifarelli, Raffaele De Palo, Pietro Patimisco, Marilena Giglio, Angelo Sampaolo, Stéphane Blaser, Tobias Gresch, Olivier Landry, Antoine Müller, and Vincenzo Spagnolo "Quartz-enhanced photoacoustic spectroscopy employing a Vernier-effect distributed feedback-quantum cascade laser for multiple analytes detection", Proc. SPIE 12021, Novel In-Plane Semiconductor Lasers XXI, 120210E (3 March 2022); https://doi.org/10.1117/12.2607866

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