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Nicolas Cézard
Researcher at University of Toulouse
Publications - 35
Citations - 214
Nicolas Cézard is an academic researcher from University of Toulouse. The author has contributed to research in topics: Lidar & Supercontinuum. The author has an hindex of 7, co-authored 33 publications receiving 157 citations. Previous affiliations of Nicolas Cézard include Université Paris-Saclay.
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Journal ArticleDOI
Simultaneous remote monitoring of atmospheric methane and water vapor using an integrated path DIAL instrument based on a widely tunable optical parametric source
Jessica Barrientos Barria,Alexandre Dobroc,Hélène Coudert-Alteirac,Myriam Raybaut,Nicolas Cézard,Jean-Baptiste Dherbecourt,Thomas Schmid,Basile Faure,Grégoire Souhaité,Jacques Pelon,Jean-Michel Melkonian,Antoine Godard,Michel Lefebvre +12 more
TL;DR: In this article, an integrated path differential absorption lidar (IPDIAL) was used for multi-species gas detection and monitoring in the 3.3-3.7 µm range.
Journal ArticleDOI
Performance evaluation of a dual fringe-imaging Michelson interferometer for air parameter measurements with a 355 nm Rayleigh-Mie lidar
TL;DR: A new concept of spectrum analyzer is proposed for short-range lidar measurements in airborne applications that implements a combination of two fringe-imaging Michelson interferometers to analyze the Rayleigh-Mie spectrum backscattered by molecules and particles at 355 nm.
Proceedings ArticleDOI
Supercontinuum laser absorption spectroscopy in the mid-infrared range for identification and concentration estimation of a multi-component atmospheric gas mixture
Nicolas Cézard,Alexandre Dobroc,Guillaume Canat,M. Duhant,W. Renard,Claire Alhenc-Gelas,Sidonie Lefebvre,Julien Fade +7 more
TL;DR: In this paper, a mid-infrared supercontinuum fiber laser source with a power spectral density of 0.3 mW/nm on a large spectral range is presented.
Journal ArticleDOI
Performance assessment of a coherent DIAL-Doppler fiber lidar at 1645 nm for remote sensing of methane and wind
Nicolas Cézard,Simon Le Méhauté,Julien Le Gouët,Matthieu Valla,Didier Goular,Didier Fleury,Christophe Planchat,Agnès Dolfi-Bouteyre +7 more
TL;DR: The lidar ability to monitor an industrial methane leak is demonstrated during a field test and the system performance has been assessed for range-resolved (RR) and integrated-path (IP) methane measurements in natural background conditions.
Journal ArticleDOI
Tentative detection of clear-air turbulence using a ground-based Rayleigh lidar.
Alain Hauchecorne,Charles Cot,Francis Dalaudier,Jacques Porteneuve,Thierry Gaudo,Richard Wilson,Claire Cénac,Christian Laqui,Philippe Keckhut,Jean-Marie Perrin,Agnès Dolfi,Nicolas Cézard,Laurent Lombard,Claudine Besson +13 more
TL;DR: This is to the authors' knowledge the first successful attempt to detect CAT in the free troposphere using an incoherent Rayleigh lidar system and may serve as a test bed for the definition of embarked CAT detection lidar systems aboard airliners.