Abstract
Three pulsed narrow band pump sources (a frequency doubled pulsed Nd-YAG, and two narrow band dye lasers) and a broad-band Stokes laser source are used to demonstrate triple pump coherent anti-Stokes Raman scattering in a jet diffusion flame. This new diagnostic technique is used to probe for three flame species simultaneously with a single laser pulse. Both temperature and species concentration can be determined with a single laser pulse because of simultaneous excitation of many Raman lines with a broad-band Stokes beam source. The spectra are recorded using a 1-m spectrometer and a back-illuminated unintensified CCD camera. The temperature and species concentration (H₂/N₂ and O₂/N₂) ratios are obtained with high temporal and spatial resolution.
Velur Natarajan, Viswanathan (2002). Demonstration of triple pump coherent anti-Stokes Raman scattering in a jet diffusion flame. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -2002 -THESIS -V396.