Airborne campaign results of a compact 2-4um broadband supercontinuum-based spectrometer system for multi-species atmospheric gas analysis at ppm level

L. Balet; S. Chin; T. Herr; F. Lütolf; P. Renevey; J. van Zaen; S. Dasen; S. Droz; V. Schaffter; J. Gouman; G. Buchs; F. J. M. Harren; A. Khodabakhsh; G. Vergara; J. Wigg; H. Martin; L. Huot; P. M. Moselund; C. Hüglin; P. Arsenovic; L. Emmenegger; S. Lecomte

doi:10.1117/12.2582511

9 March 2021 Airborne campaign results of a compact 2-4um broadband supercontinuum-based spectrometer system for multi-species atmospheric gas analysis at ppm level

L. Balet, S. Chin, T. Herr, F. Lütolf, P. Renevey, J. van Zaen, S. Dasen, S. Droz, V. Schaffter, J. Gouman, G. Buchs, F. J. M. Harren, A. Khodabakhsh, G. Vergara, J. Wigg, H. Martin, L. Huot, P. M. Moselund, C. Hüglin, P. Arsenovic, L. Emmenegger, S. Lecomte

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Proceedings Volume 11693, Photonic Instrumentation Engineering VIII; 116930Y (2021) https://doi.org/10.1117/12.2582511
Event: SPIE OPTO, 2021, Online Only

Abstract

A compact broadband atmospheric gas spectrometer has been developed in the framework of the EU-H2020 FLAIR project. The system is composed of a mid-IR 2-4um broadband supercontinuum source, a temperature controlled 10- meter-long multipass-cell for light-gas interaction, a diffraction grating, and an uncooled PbSe-on-CMOS matrix detector recording absorption spectra. The detection limit has been measured at sub-ppm level on methane under laboratory conditions. We also present 2 successful field measurement campaigns aboard airborne platforms: a hot-air airship for controlled methane release experiments, and a helicopter tracking ship exhaust fumes abroad the coastline of Denmark, with special emphasis on methane detection.

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L. Balet, S. Chin, T. Herr, F. Lütolf, P. Renevey, J. van Zaen, S. Dasen, S. Droz, V. Schaffter, J. Gouman, G. Buchs, F. J. M. Harren, A. Khodabakhsh, G. Vergara, J. Wigg, H. Martin, L. Huot, P. M. Moselund, C. Hüglin, P. Arsenovic, L. Emmenegger, and S. Lecomte "Airborne campaign results of a compact 2-4um broadband supercontinuum-based spectrometer system for multi-species atmospheric gas analysis at ppm level", Proc. SPIE 11693, Photonic Instrumentation Engineering VIII, 116930Y (9 March 2021); https://doi.org/10.1117/12.2582511

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