High resolution spectroscopy of explosive ...
Type de document :
Autre communication scientifique (congrès sans actes - poster - séminaire...): Communication dans un congrès avec actes
Titre :
High resolution spectroscopy of explosive taggants using intracavity millimeter-wave spectrometer
Auteur(s) :
Chrayteh, Mhamad [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Simon, Fabien [Auteur]
Hindle, Francis [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Mouret, Gaël [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Roucou, Anthony [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Deguine, A. [Auteur]
Physique Moléculaire aux Interfaces [PMI]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Goubet, Manuel [Auteur]
Physique Moléculaire aux Interfaces [PMI]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Cuisset, Arnaud [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Simon, Fabien [Auteur]
Hindle, Francis [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Mouret, Gaël [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Roucou, Anthony [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Deguine, A. [Auteur]
Physique Moléculaire aux Interfaces [PMI]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Goubet, Manuel [Auteur]

Physique Moléculaire aux Interfaces [PMI]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Cuisset, Arnaud [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Titre de la manifestation scientifique :
76th International Symposium on Molecular Spectroscopy
Ville :
Urbana-Champaign
Pays :
Etats-Unis d'Amérique
Date de début de la manifestation scientifique :
2023-06-19
Discipline(s) HAL :
Physique [physics]
Résumé en anglais : [en]
Cavity measurements are well established for sensitive infrared measurements of gas-phase compounds. A recent development of a Fabry-Perot cavity by Hindle et al. [Optica, 2019, 6, 1449-1454] has allowed to adapt this ...
Lire la suite >Cavity measurements are well established for sensitive infrared measurements of gas-phase compounds. A recent development of a Fabry-Perot cavity by Hindle et al. [Optica, 2019, 6, 1449-1454] has allowed to adapt this technique in the submillimeter-wave range for rotational spectral measurements using cavity enhanced absorption spectroscopy (CEAS) and cavity ring-down spectroscopy (CRDS) around 620 GHz.Recently, we have developed a similar cavity for larger wavelengths in the 150-215 GHz range in order to measure at trace levels semi-volatile organic compounds. The capability of the spectrometer to measure semi-volatiles explosive taggants such as dinitrotoluenes or 2,3-dimethyl-2,3-dinitrobutane (DMNB) and to measure at ppm level nitromethane in this spectral range will be presented. In particular, the recent measurement in cavity and the spectral analysis of DMNB based on quantum chemistry calculations and microwave spectral analysis performed at the PhLAM laboratory will be presented.Lire moins >
Lire la suite >Cavity measurements are well established for sensitive infrared measurements of gas-phase compounds. A recent development of a Fabry-Perot cavity by Hindle et al. [Optica, 2019, 6, 1449-1454] has allowed to adapt this technique in the submillimeter-wave range for rotational spectral measurements using cavity enhanced absorption spectroscopy (CEAS) and cavity ring-down spectroscopy (CRDS) around 620 GHz.Recently, we have developed a similar cavity for larger wavelengths in the 150-215 GHz range in order to measure at trace levels semi-volatile organic compounds. The capability of the spectrometer to measure semi-volatiles explosive taggants such as dinitrotoluenes or 2,3-dimethyl-2,3-dinitrobutane (DMNB) and to measure at ppm level nitromethane in this spectral range will be presented. In particular, the recent measurement in cavity and the spectral analysis of DMNB based on quantum chemistry calculations and microwave spectral analysis performed at the PhLAM laboratory will be presented.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Source :