Application of a two-color dye laser in CARS experiments for fast determination of temperatures

Abstract

The application of coherent anti-Stokes Raman scattering (CARS) as a measuring tool in combustion diagnostics is well documented (e.g., Ref. 1). In the first CARS measurements the wavelength of a dye laser at frequency s was scanned through the wavelength region of the Stokes Raman band, determined by a fix-frequency laser at . The Raman shift of the studied molecule is then given by p - s = R . The CARS signal is generated through the third-order non linear susceptibility These early CARS measurements were clearly limited to 2054