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WEBINAR | Spectroscopic Reference Data for Hot Gases

DRS Daylight SolutionsRequest Info
 
DRS Daylight Solutions WebinarThere exists a marked lack of experimental absorption spectra for gaseous molecules at high temperatures and high pressures. Gases in these high-enthalpy thermodynamic states are present in a wide range of natural and man-made environments, such as cool stars, exoplanets, plasmas, explosions, flames, volcanoes, forest fires, combustion systems, hypersonic flows, industrial processes, and exhaust stacks. Infrared absorption and emission spectroscopy offer a powerful toolset for understanding the characteristics of these environments but these techniques rely upon validated spectral models and accurate reference data for quantitative interpretation of measured spectra. By and large, these models and reference data do not exist for most molecules at high temperatures and pressures.

At Stanford University, the Hanson Group has recently developed a methodology using shock-heated test gases in conjunction with the rapid-tuning, broad-scan, narrow-linewidth lasers developed by Daylight Solutions to measure the high-temperature and high-pressure absorption cross-sections of molecules in the mid-infrared. Presently, the approach has been demonstrated for several short-chain alkenes and alcohols for conditions ranging from 800 to 1600 K and 1 to 5 atm. It is envisioned that this combination of technologies will enable the construction of a comprehensive mid-infrared molecular spectral database to temperatures and pressures as high as 10,000K and 1000 atm, respectively, and open new insights into a range of high-temperature and high-pressure environments.


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ProductsDRS Daylight Solutionsspectroscopygas analysisHot Gasesrapid-tuningcombustion scienceenvironmental sensingplasma analysisindustrial processhypersonic flowsflamesexplosionsexhaust stacksemissionsalkenes

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