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Your search keyword '"Chaussard , Frédéric"' showing total 7 results
Start Over Author "Chaussard , Frédéric" Topic [phys.phys.phys-optics] physics [physics]/physics [physics]/optics [physics.optics]
7 results on '"Chaussard , Frédéric"'

1. Molecular alignment in CO2 mixtures induced by a short nonresonant intense pulse : effect of collisional relaxation

Author

Vieillard, T., Chaussard, Frédéric, Sugny, Dominique, Lavorel, B., Faucher, Olivier, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), and Chaussard, Frederic

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
Published
2007

2. CARS methane spectroscopy for temperature measurements in rocket engines

Author

Jourdanneau , Eric, Bertseva , E., Habiballah , M., Grisch , F., Chaussard , Frédéric, Saint-Loup , R., Gabard , Tony, Berger , H., Laboratoire de Physique de l'Université de Bourgogne (LPUB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), ONERA - The French Aerospace Lab [Palaiseau], ONERA-Université Paris Saclay (COmUE), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Laboratoire de Physique de l'Université de Bourgogne ( LPUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), ONERA - The French Aerospace Lab ( Palaiseau ), ONERA, ONERA - The French Aerospace Lab ( Chatillon ), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), ONERA - The French Aerospace Lab [Châtillon], Chaussard, Frederic, and Gabard, Tony

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-GEN-PH] Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], [ PHYS.PHYS.PHYS-GEN-PH ] Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], ComputingMilieux_MISCELLANEOUS, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]
Abstract

International audience

Published
2007

3. Field-free molecular alignment in presence of collisional relaxations

Author

Vieillard, T., Chaussard, Frédéric, Sugny, Dominique, Lavorel, Bruno, Faucher, Olivier, Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), and Chaussard, Frederic

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
Published
2007

4. The methane Raman spectrum up to 5500 cm-1. Application to the diagnostic of temperature in combustion media

Author

Jourdanneau, Eric, Gabard, Tony, Chaussard, Frédéric, Saint-Loup, R., Berger, H., Bertseva, E., Grisch, F., Laboratoire de Physique de l'Université de Bourgogne ( LPUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), ONERA - The French Aerospace Lab ( Palaiseau ), ONERA, Laboratoire de Physique de l'Université de Bourgogne (LPUB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), ONERA - The French Aerospace Lab [Palaiseau], ONERA-Université Paris Saclay (COmUE), and Chaussard, Frederic

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
Published
2005

5. Speed-memory effects in H2-N2 mixtures studied by CARS femtosecond. Experiments and modelization from the collisional to the Doppler regime

Author

Le Cong, N., Lavorel, Bruno, Chaussard, Frédéric, Renard, Vincent, Faucher, Olivier, Tran, Ha, Joubert, Pierre, Bonamy, L., Chaussard, Frederic, Laboratoire de Physique de l'Université de Bourgogne (LPUB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Moléculaire (UMR 6624) (LPM), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de l'Université de Bourgogne ( LPUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Moléculaire ( LPM ), and Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC )

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
Published
2005

6. Rotational excitation with femtosecond pulses : from high resolution spectroscopy to molecular alignment

Author

Lavorel , Bruno, Faucher , Olivier, Hertz , E., Chaussard , Frédéric, Boudon , Vincent, Guerin , S., Jauslin , Hans-Rudolf, Chaussard, Frederic, Laboratoire de Physique de l'Université de Bourgogne (LPUB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de l'Université de Bourgogne ( LPUB ), and Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS )

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

7. Experimental and theoretical study of line mixing in methane spectra. III. The Q branch of the Raman nu(1) band

Author

Pieroni, Daniela, Hartmann, Jean-Michel, Chaussard, Frédéric, Michaut, X., Gabard, Tony, Saint-Loup, R., Berger, H., Champion, Jean-Paul, Laboratoire de Photophysique Moléculaire ( PPM ), Université Paris-Sud - Paris 11 ( UP11 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique de l'Université de Bourgogne ( LPUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Photophysique Moléculaire (PPM), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de l'Université de Bourgogne (LPUB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), and Chaussard, Frederic

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], SUM-RULES, NITROGEN, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], PERTURBER DEPENDENCIES, DENSITY, PRESSURE-SHIFT COEFFICIENTS, (CH4)-C-12, CO2 INFRARED-SPECTRA, NU(3) BAND, TEMPERATURE, PARAMETERS
Abstract

International audience; The shape of the nu(1) Raman Q branch of CH4 perturbed by Ar and He at room temperature has been studied. Stimulated Raman spectroscopy (SRS) experiments have been made in the 2915-2918 cm(-1) spectral region for total pressures from 0.4 to 70 atm and mixtures of approximate to 5% CH4 with He and Ar. Analysis of the spectra demonstrates that the shape of the Q branch is significantly influenced by line mixing and much narrower than what is predicted by the addition of individual line profiles. For the first time, a model is proposed for the calculation and analysis of the effects of collisions on the considered spectra. In this approach, the rotational part of the relaxation matrix is constructed, with no adjustable parameter, starting from semiclassical state-to-state rates. Two empirical constants which account for the shift and broadening of the branch due to vibrational effects are introduced and their values are determined from fits of measured spectra. Comparisons between measurements and results computed with and without the inclusion of line mixing are made. Although not perfect, our model satisfactory accounts for most effects of pressure at low densities, where rotational transfers are dominant, as well as at high densities, where the profile is strongly influenced by vibrational contributions. It is shown that collisions with He and Ar lead to different behaviors at elevated pressure. The influence of the perturbation introduced by the Fermi coupling between the nu(1) and nu(2)+nu(4) levels is discussed and the rotational and vibrational contributions to the spectral shape are pointed out.

Published
2000

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