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  • 1
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    Coherent anti-Stokes Raman spectroscopic modeling for combustion diagnostics (1983)
    In:  Other Sources
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    Publication Date: 2011-08-18
    Description: The status of modelling the coherent anti-Stokes Raman spectroscopy (CARS) spectra of molecules important in combustion, such as N2, H2O, and CO2, is reviewed. It is shown that accurate modelling generally requires highly precise knowledge of line positions and reasonable estimates of Raman linewidths, and the sources of these data are discussed. CARS technique and theory is reviewed, and the status of modelling the phenomenon of collisional narrowing at pressures well above atmospheric for N2, H2O, and CO2 is described. It is shown that good agreement with experiment can be achieved using either the Gordon rotational diffusion model or phenomenological models for inelastic energy transfer rates.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Optical Engineering (ISSN 0091-3286); 22; May-June
    Format: text
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  • 2
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    Investigations of coherent anti-Stokes Raman spectroscopy /CARS/ for practical combustion diagnostics (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Coherent anti-Stokes Raman spectroscopy (CARS) is a coherent wave-mixing process in which the signal emerges as a laser-like beam in a precise direction. The spectroscopic technique is appropriate to spatially and temporally resolved measurements of temperature and major species concentrations in combustion. It has been generated from all of the dominant constituents in air-fed, hydrogen, and hydrocarbon fueled combustion, and found applicable to practical combustion systems. High pressure effects on CARS spectra have also been examined.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: International Symposium on Air Breathing Engines; Feb 16, 1981 - Feb 22, 1981; Bangalore; India
    Format: text
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