Opt Lett. 1981 Oct 01;6(10):458-60. doi: 10.1364/ol.6.000458.
Optics letters
R E Teets, J H Bechtel
PMID: 19710736 DOI: 10.1364/ol.6.000458
Coherent anti-Stokes Raman spectroscopy (CARS) was used to detect oxygen atoms (electronic Raman scattering) and oxygen molecules (rotational Raman scattering) in both hydrogen-oxygen and methane-oxygen flames. The high spectral resolution of CARS is useful for distinguishing the oxygen-atom signals from larger nearby rotational Raman signals. Saturation of the molecular CARS signal that is due to stimulated Raman scattering was observed. This effect limits the sensitivity of the CARS method.