Pure rotational coherent anti-Stokes Raman spectroscopy is applied for quantitative gas-phase temperature measurements in the vaporizing spray of an automotive fuel injector. Interferences from elastically scattered stray light are greatly reduced by use of a polarization technique and spectral filtering in a double monochromator. The applicability of this technique to probing low-temperature sprays is successfully demonstrated.
© 2004 Optical Society of America
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
Frank Beyrau, Andreas Bräuer, Thomas Seeger, and Alfred Leipertz, "Gas-phase temperature measurement in the vaporizing spray of a gasoline direct-injection injector by use of pure rotational coherent anti-Stokes Raman scattering," Opt. Lett. 29, 247-249 (2004)