A POWERFUL TOOL TO STUDY COLLISIONAL PHENOMENA AND FOR COMBUSTION APPLICATIONS : THE HIGH RESOLUTION STIMULATED RAMAN SPECTROSCOPY

1987

Updating methods of dynamic structural finite element models: Dynamic reaction forces approach and error in constitutive equation approach

1991

National audience

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

2005

Stimulated Raman-Spectroscopy as the Essential Tool for Studying Collisional Effects - Application to Combustion

1994

3rd International Conference: Laser M2P DEC 08-10, 1993 LYON, FRANCE FEDERAT LASER CTR, RHONE ALPES REG; The main purposes of this paper are to give an overview of coherent Raman techniques with a particular emphasis on Stimulated Raman Spectroscopy (SRS) because this process can be considered as an essential tool for investigating collisional processes.

High-Resolution Nonlinear Raman-Spectroscopy in Gases

1990

0377-0486; The resolution in the Raman spectra of gases has been greatly improved by the development of the different methods of non-linear Raman scattering. When two laser beams, one of which has a tunable frequency, are focused in a sample, a stimulated Raman process occurs as soon as the frequency difference between the two lasers is equal to a Raman-active rovibrational or rotational transition frequency. The Raman resonance can be detected in different ways: by coherent anti-Stokes Raman scattering (CARS) or the corresponding Stokes process (CSRS), by a gain in one of the beams (stimulated Raman gain spectroscopy, SRGS) or a loss in the other (inverse Raman spectroscopy, IRS), or even …

A Powerful Tool to Study Collisional Phenomena and for Combustion Applications - the High-Resolution Stimulated Raman-Spectroscopy

1987

0302-0738

Recalage d'un modèle éléments finis en utilisant des données expérimentales. Concept de localisation

1984

National audience

Study of Collisional Effects on Band Shapes of the v1/2v2 Fermi Dyad in CO2 Gas with Stimulated Raman-Spectroscopy .2. Simultaneous Line Mixing and D…

1990

0021-9606

Pressure and Temperature Evolution of Fundamental Vibrational Transition of Liquid Nitrogen Using Inverse Stimulated Raman Spectroscopy

1990

CONF ON LASERS AND QUANTUM OPTICS ( COLOQ-1 ) SEP 11-13, 1989 VILLETANEUSE, FRANCE SOC SPECTRA PHYS, SOC OPLILAS, SOC PHOTON SCI INSTRUMENTS, SOC PHOTONET COHERENT SCI, SOC QUANTEL Suppl. 2

Stimulated Raman-Spectroscopy of the Q-Branch of Nitrogen at High Pressure - Collisional Narrowing and Shifting in the 150-6800 Bar Range at Room Tem…

1992

0026-8976; The Raman Q branch of N2 has been recorded at room temperature in the pressure range 150-6800 bar, which corresponds to densities from 135 to 800 amagat. In this domain, the Raman Q branch profile is mainly determined by the well-known collisional narrowing. The experimental data have been obtained by means of a high resolution stimulated Raman spectrometer. The linewidth and line shift of the band have been accurately measured as functions of the density, and their density dependences have been fitted by polynomials. The minimum of the linewidth and the maximum of the red shift have been clearly observed at respectively 735.8 and 532.3 amagat. The lineshape was found to be Loren…

Rotationally Inelastic Rates for N2-N2 System from a Scaling Theoretical Analysis of the Stimulated Raman Q-Branch

1988

0021-9606

High-Resolution Stimulated Raman-Spectroscopy with a 3 MHz Accuracy Wavemeter

1987

0302-0738

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

2000

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 re…

Identification of mechanical characteristics of a structure in composite material

1981

National audience

Self-Density Frequency-Shift Measurements of Raman N2 Q-Branch Transitions

1987

0030-4018

Nonlinear Raman Spectroscopy in Gases

1992

0022-2860; Recent progress in high-resolution non-linear coherent Raman spectroscopy in the gas phase is reviewed. An instrumental spectral resolution of less than 100 MHz can be routinely achieved. It is limited by the convoluted linewidths of the lasers used for excitation and is of particular advantage in the gas phase, where the rotational structure of vibrational bands is to be resolved. It also allows the measurement of linewidths and line positions with an accuracy of 60 MHz when an appropriate wavemeter is used for calibration. After a short overview of the various techniques being used, examples of recent results of the evaluation of measurements on nitrogen, oxygen, carbon dioxide…

Inverse Raman-Spectrum of Cyclopropane in the Region 3000-3050 cm-1

1989

International audience

Density and Temperature-Dependence of the Isotropic Vibrational Raman Spectrum of Compressed Liquid N2

1989

0009-2614

Erratum to “Choices of Stent and Cerebral Protection in the Ongoing ACST-2 Trial: A Descriptive Study” (European Journal of Vascular and Endovascular…

2017

Due to a miscommunication during the production of this article, the members of the ACST-2 Collaborative Group were not properly indexed in PubMed. This has now been corrected online. We apologize for any confusion or inconvenience that this oversight might have caused.

Une méthode de calcul par éléments finis des mouvements de liquides dans des réservoirs rigides ou déformables

1974

National audience