Simultaneous CARS and Interferometric Rayleigh Scattering | Zendy

Daniel Bivolaru | Zendy; Paul M. Danehy | Zendy; Keith D. Grinstead | Zendy; Sarah A. Tedder | Zendy; Andrew D. Cutler | Zendy

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Simultaneous CARS and Interferometric Rayleigh Scattering

Author(s) -

Daniel Bivolaru,

Paul M. Danehy,

Keith D. Grinstead,

Sarah A. Tedder,

Andrew D. Cutler

Publication year - 2006

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2006-2968

Subject(s) - rayleigh scattering , interferometry , optics , raman scattering , scattering , spectrometer , materials science , spectral line , light scattering , beam (structure) , raman spectroscopy , physics , astronomy

*† § ‡ ¶ This paper reports for the first time the combination of a dual-pump coherent antiStokes Raman scattering system with an interferometric Rayleigh scattering system (CARS IRS) to provide time-resolved simultaneous measurement of multiple properties in combustion flows. The system uses spectrally narrow green (seeded Nd:YAG at 532 nm) and yellow (552.9 nm) pump beams and a spectrally-broad red (607 nm) beam as the Stokes beam. A spectrometer and a planar Fabry-Perot interferometer used in the imaging mode are used to record the spectrally broad CARS spectra and the spontaneous Rayleigh scattering spectra, respectively. Time-resolved simultaneous measurement of temperature, absolute mole fractions of N2, O2, and H2, and two components of velocity in a Hencken burner flame were performed to demonstrate the technique.

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