Differential absorption lidar for water vapor isotopologues in the 1.98 µm spectral region: sensitivity analysis with respect to regional atmospheric variability

Autor: J. Hamperl, C. Capitaine, J.-B. Dherbecourt, M. Raybaut, P. Chazette, J. Totems, B. Grouiez, L. Régalia, R. Santagata, C. Evesque, J.-M. Melkonian, A. Godard, A. Seidl, H. Sodemann, C. Flamant

Publikováno v: Atmospheric Measurement Techniques, Vol 14, Pp 6675-6693 (2021)

Laser active remote sensing of tropospheric water vapor is a promising technology to complement passive observational means in order to enhance our understanding of processes governing the global hydrological cycle. In such a context, we investigate

Externí odkaz: https://doaj.org/article/28c14e358f4c4d5c80fb4db4cb480813

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Capteur QEPAS utilisant un résonateur radial

Autor: Guillaume Aoust, J.-M. Melkonian, Myriam Raybaut, Antoine Godard, Raphaël Lévy, Maxime Duquesnoy

Publikováno v: Applied Physics B-Laser and Optics
Applied Physics B-Laser and Optics, Springer Verlag, 2021, 127 (11), pp.150. ⟨10.1007/s00340-021-07699-2⟩

International audience; We report on the use of a radial acoustic resonator to increase the acoustic signal of a quartz enhanced photoacoustic spectroscopy (QEPAS) sensor. This approach is an attractive alternative to usual configurations based on mi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39d18d6deacaf7253a6d605f313cd114
https://doi.org/10.1007/s00340-021-07699-2

Design and pre-development of an airborne multi-species differential absorption Lidar system for water vapor and HDO isotope, carbon dioxide, and methane observation

Autor: Antoine Godard, R. Santagata, Julien Totems, Patrick Chazette, M. Strotkamp, H. Schäfer, Vincent Lebat, S. Rapp, Jonas Hamperl, Cyrille Flamant, Myriam Raybaut, J.-M. Melkonian, Harald Sodemann, D. Heinecke, J. F. Geus, Jean-Baptiste Dherbecourt, Hans Christian Steen-Larsen, Valdas Pasiskevicius, Marine Dalin

Publikováno v: Proceedings SPIE 11852, International Conference on Space Optics — ICSO 2021
Proceedings SPIE 11852, International Conference on Space Optics — ICSO 2021, Mar 2021, Online Only, France. ⟨10.1117/12.2599326⟩
International Conference on Space Optics — ICSO 2021
International Conference on Space Optics — ICSO 2021, Mar 2021, Online Only, United States. pp.118521U, ⟨10.1117/12.2599326⟩
International Conference on Space Optics — ICSO 2020

International audience; We report on the current design and preliminary developments of the airborne Lidar Emitter and Multi-species greenhouse gases Observation iNstrument (LEMON), which is aiming at probing H2O and its isotope HDO at 1982 nm, CO2 a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7123a7e0c27b3ba295b4a9d793ae3a5
https://doi.org/10.1117/12.2599326

QEPAS Sensor Based on the Tracking of the Photoacoustic Induced Frequency Shift of a Tuning Fork Maintained in Self-Sustained Oscillation by Electrical Excitation

Autor: Raphaël Lévy, J.-M. Melkonian, Maxime Duquesnoy, Guillaume Aoust, Myriam Raybaut, Antoine Godard

Publikováno v: SM4N-Precision Molecular Spectroscopy
CLEO: Science and Innovations 2021
CLEO: Science and Innovations 2021, May 2021, San Jose, United States. pp.SM4N.7, ⟨10.1364/CLEO_SI.2021.SM4N.7⟩

International audience; Oscillator frequency shift induced by the photoacoustic force on a closed-loop electrically excited quartz tuning fork is exploited to carry out QEPAS measurement. We report recent improvements of this new method for backgroun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdacbf5938bcabdcd2d24bac4e2ca094
https://doi.org/10.1364/cleo_si.2021.sm4n.7