Search Results - "Lavorel, Bruno"

Measurement of high order Kerr refractive index of major air components by Loriot, V, Hertz, E, Faucher, O, Lavorel, B

“…We measure the instantaneous electronic nonlinear refractive index of N(2), O(2) and Ar at room temperature for a 90 fs and 800 nm laser pulse. Measurements…”
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Observing collisions beyond the secular approximation limit by Ma, Junyang, Zhang, Haisu, Lavorel, Bruno, Billard, Franck, Hertz, Edouard, Wu, Jian, Boulet, Christian, Hartmann, Jean-Michel, Faucher, Olivier

“…Quantum coherence plays an essential role in diverse natural phenomena and technological applications. The unavoidable coupling of the quantum system to an…”
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Optical Imaging of Coherent Molecular Rotors by Bert, Jérémy, Prost, Emilien, Tutunnikov, Ilia, Béjot, Pierre, Hertz, Edouard, Billard, Franck, Lavorel, Bruno, Steinitz, Uri, Averbukh, Ilya Sh, Faucher, Olivier

“…Short laser pulses are widely used for controlling molecular rotational degrees of freedom and inducing molecular alignment, orientation, unidirectional…”
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Polarization-based tachometer for measuring spinning rotors by Prost, Emilien, Hertz, Edouard, Billard, Franck, Lavorel, Bruno, Faucher, Olivier

“…We report on the polarization analysis of shortpulse ultraviolet radiation produced by third-harmonic generation in a gas of coherently spinning molecules. A…”
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Optical imaging Ultrafast buffering by molecular gas by Hertz, Edouard, Lavorel, Bruno, Faucher, Olivier

“…A simple molecular gas sample can be used to achieve ultrafast optical buffering in two-dimensional optical imaging, thus serving as a promising extension of…”
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Time‐Resolved Molecular Imaging: Optical Imaging of Coherent Molecular Rotors (Laser Photonics Rev. 14(5)/2020) by Bert, Jérémy, Prost, Emilien, Tutunnikov, Ilia, Béjot, Pierre, Hertz, Edouard, Billard, Franck, Lavorel, Bruno, Steinitz, Uri, Averbukh, Ilya Sh, Faucher, Olivier

“…In article number 1900344, Jérémy Bert, Ilya Sh. Averbukh, Olivier Faucher, and co‐workers demonstrate a novel optical method for visualizing rapidly spinning…”
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Ultrafast buffering by molecular gas by Hertz, Edouard, Lavorel, Bruno, Faucher, Olivier

“…A simple molecular gas sample can be used to achieve ultrafast optical buffering in two-dimensional optical imaging, thus serving as a promising extension of…”
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Development and applications of nonlinear optical spectroscopy: 13th ECONOS/33rd ECW meeting in Dole (France) by Joubert, Pierre, Lavorel, Bruno, Kiefer, Johannes, Moger, Julian

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Molecular dynamics simulations for CO2 spectra. IV. Collisional line-mixing in infrared and Raman bands by Lamouroux, J, Hartmann, J-M, Tran, H, Lavorel, B, Snels, M, Stefani, S, Piccioni, G

“…Ab initio calculations of the shapes of pure CO2 infrared and Raman bands under (pressure) conditions for which line-mixing effects are important have been…”
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Field-free molecular alignment detection by 4f coherent imaging by Houzet, J., Billard, F., Hertz, E., Chateau, D., Chaussard, F., Lavorel, B., Faucher, O.

“…Time-resolved detection of field-free molecular alignment is investigated by phase contrast. The technique based on a 4 f imager operating as an inverted…”
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Field-free molecular alignment of CO2 mixtures in presence of collisional relaxation by Vieillard, T., Chaussard, Frédéric, Sugny, Dominique, Lavorel, Bruno, Faucher, O.

“…The present work explores the extension of the concept of short-pulse-induced alignment to dissipative environments within quantum mechanical density matrix…”
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Analysis of femtosecond Raman-induced polarization spectroscopy (RIPS) in N2 and CO2 by fitting and scaling laws by Lavorel, Bruno, Faucher, Olivier, Morgen, Mike, Chaux, Roland

“…Raman‐induced polarization spectroscopy (RIPS) experiments were conducted at room temperature and pressures below 2 atm in pure N2 and CO2. Both homodyne and…”
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Wavelength dependence of multiphoton ionization of xenon by Kaminski, Patrick, Wiehle, Rolf, Renard, Vincent, Kazmierczak, Anne, Lavorel, Bruno, Faucher, Olivier, Witzel, Bernd

“…We have studied the multiphoton ionization of xenon atoms by 160 fs pulses at intensities of 531012 and 1.331013 W/cm2 and present photoelectron kinetic energy…”
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Suppression of plasma contribution in femtosecond degenerate four-wave mixing (fs-DFWM) at high intensity by Rouzée, A., Renard, V., Guérin, S., Faucher, O., Lavorel, B.

“…Femtosecond degenerate four‐wave mixing (fs‐DFWM) experiments in CO2 exhibit a strong background due to plasma produced at high intensity (≥20 TW/cm2), when…”
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Probing ultrafast thermalization with field-free molecular alignment by Houzet, J., Gateau, J., Hertz, E., Billard, F., Lavorel, B., Hartmann, J.-M., Boulet, C., Faucher, O.

“…The rotation-translation thermalization of CO2 gas is investigated 500 ps after its preheating by a nonresonant short and intense laser pulse. The temperature…”
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Optical imaging of coherent molecular rotors by Bert, Jérémy, Prost, Emilien, Tutunnikov, Ilia, Béjot, Pierre, Hertz, Edouard, Billard, Franck, Lavorel, Bruno, Steinitz, Uri, Averbukh, Ilya Sh, Faucher, Olivier

“…Laser & Photonics Reviews 14, 1900344 (2020) Short laser pulses are widely used for controlling molecular rotational degrees of freedom and inducing molecular…”
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Determination of concentrations in ternary and quaternary molecular gas mixtures using femtosecond Raman spectroscopy by Tran, H., Lavorel, B., Faucher, O., Saint-Loup, R., Joubert, P.

“…Measurements of concentrations in gas mixtures of three and four molecular components are presented. They rely on a femtosecond time‐resolved pump–probe…”
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High-field quantum calculation reveals time-dependent negative Kerr contribution by Béjot, Pierre, Cormier, Eric, Hertz, Edouard, Lavorel, Bruno, Kasparian, Jérôme, Wolf, Jean-Pierre, Faucher, Olivier

“…Phys. Rev. Lett. 110, 043902 (2013) The exact quantum time-dependent optical response of hydrogen under strong field near infrared excitation is investigated…”
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Transition from plasma- to Kerr-driven laser filamentation by Béjot, Pierre, Hertz, Edouard, Kasparian, Jérôme, Lavorel, Bruno, Wolf, Jean-Pierre, Faucher, Olivier

“…Physical Review Letters 106, 243902 (2011) While filaments are generally interpreted as a dynamic balance between Kerr focusing and plasma defocusing, the role…”
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Electrostrictive limit in the detection of weak stimulated Raman signals in gases by Pelletier, Régis, Saint-Loup, Robert, Lavorel, Bruno

“…It is shown experimentally that, in stimulated Raman spectroscopy, electrostriction induced by the pump laser gives rise to a non‐resonant signal detected on…”
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