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Paul S. Hsu, Waruna D. Kulatilaka, James R. Gord and Sukesh Roy Single-shot thermometry using fiber-based picosecond coherent anti-stokes Raman scattering (CARS) spectroscopy Journal of Raman Spectroscopy 44

Article first published online: 1 MAR 2013 | DOI: 10.1002/jrs.4280

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We have developed a fiber-based picosecond-coherent anti-Stokes Raman scattering (CARS) system for gas phase thermometry in harsh combustion environments. Proof-of-principle, single-laser-shot temperature measurements using 1-m-long and 3-m-long fiber systems are demonstrated in atmospheric pressure, near-adiabatic, laboratory H2–air flames. Limitations that are imposed by long-length multimode-fiber beam delivery for CARS thermometry are investigated and potential system improvements are suggested.

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